This chart from Bank of America Merrill Lynch, via Business Insider's Mamta Badkar, shows that Americans are moving less than they used to:

(Bank of America Merrill Lynch)

That may be bad news for the economy. A dynamic economy requires people being able to move to wherever their most productive niche may be. Often, that can be hundreds or even thousands of miles away. So less geographic mobility tends to mean less economic dynamism. (Although in the era of telecommuting, it is possible that this is beginning to matter less.)

Now, the U.S. still has far more geographic mobility than, for example, Europe. That is helped by the fact that the U.S. has a single common language, unlike Europe. That's one reason why Europe's economy is struggling so much — a lack of a common language means it is much harder for people in a weaker economic area like Greece to move to a more prosperous area, like Germany.

The trend toward less mobility has been driven via the rise of homeownership in the 1990s. Homeowners are less like to move than renters because it is significantly more expensive for homeowners to move, thanks to various costs including broker fees, transaction costs, mortgage fees, insurance, and so on.

Things have gotten worse with the emergence of mortgages with negative equity — in which a borrower owes more on their mortgage than their home is worth — since the 2008 financial crisis. Now that housing prices have bottomed out (they did so in 2012) and are rising again, mobility stands a chance of beginning to rise again.

Texas nurse Nina Pham survived her encounter with the Ebola virus, but the 26 year old told The Dallas Morning News in an exclusive interview that she still suffers nightmares, body aches, and insomnia following her fight against the disease.

Pham contracted Ebola while caring for patient Thomas Eric Duncan at Texas Health Presbyterian Hospital Dallas. Now, she is suing the hospital's parent company, Texas Health Resources, for what she says was inadequate training and protection for hospital workers. Pham is asking for unspecified damages for turning her into "a symbol of corporate neglect," she said.

"I wanted to believe that they would have my back and take care of me, but they just haven't risen to the occasion," Pham said.

Read the full interview over at The Dallas Morning News.

A poll conducted by NBC News and The Wall Street Journal found that 48 percent of American voters believe congressional Republicans should not have invited Israeli Prime Minister Benjamin Netanyahu to address Congress, without first consulting President Barack Obama. Thirty percent said the invitation was fine, and 22 percent had no opinion.

The issue was overwhelmingly a partisan one; 66 percent of Democrats disagreed with the decision, while just 28 percent of Republicans were against the upcoming address.

Netanyahu will address Congress on Tuesday, calling himself an "emissary" of the Jewish people. The Israeli prime minister is expected to voice his disagreement with a potential deal on Iran's nuclear program. While both Israel and the U.S. oppose Iran's building of a nuclear bomb, Israel wants the country to shutter all nuclear activity, while President Barack Obama has seemed more willing to allow Iran to continue some parts of its program, with implemented safeguards.

Dakota Johnson can be seen right now in Fifty Shades of Grey, but her most controversial moment of the weekend may have come in a pre-recorded sketch for Saturday Night Live.

In it, the host of this weekend's episode says goodbye to her dad, played by Taran Killam, in what appears to be a typical father-daughter moment before leaving for college. The reveal is that Johnson is not headed off to university for four years, but rather to join ISIS.

The reaction on social media found the skit to be in poor taste — decide for yourself and check it out, below. —Sarah Eberspacher

Samuel Sam-Sumana, vice president of Sierra Leone, announced on Saturday that he would "lead by example," and spend 21 days in voluntary quarantine, following the death of his bodyguard from Ebola last week, BBC News reports.

While the number of reported cases in Sierra Leone had been on the decline, a recent uptick was cause for concern, according to government officials. More than 23,500 Ebola cases have been reported in Sierra Leone, Liberia, and Guinea since the outbreak began in December 2013; nearly 10,000 people have died from the disease.

Carrying signs declaring "I am not afraid," and portraits of murdered Russian politician Boris Nemtsov, thousands marched through Moscow on Sunday, Reuters reports.

(AP Photo/Dmitry Lovetsky)

The demonstrators walked in honor of Nemtsov, who was shot four times on Friday while walking across a bridge near the Kremlin. The harsh critic of Russian President Vladimir Putin had served as deputy prime minister under Russia's first post-Soviet President, Boris Yeltsin, in the 1990s. He became a popular figure in opposition politics after Yeltsin's successor, Putin, came to power.

(AP Photo/Pavel Golovkin)

"If we can stop the campaign of hate that's being directed at the opposition, then we have a chance to change Russia," Gennady Gudkov, an opposition leader, told Reuters before the march. "If not, then we face the prospect of mass civil conflict."

(AP Photo/Pavel Golovkin)

Putin has condemned Nemtsov’s murder as a "provocation," and Kremlin investigators say they are pursuing several leads. In interviews before his death, Nemtsov said he feared Putin might want him dead because of his involvement with the opposition.

Ronda Rousey needed just 14 seconds on Saturday night to defend her UFC bantamweight title against Cat Zingano, ESPN reports.

It was Rousey's (11-0) fifth UFC title defense; her last three have lasted just 66 seconds, 16 seconds, and now 14 seconds — the latter being the fastest finish of her career thus far and a UFC record for fastest ever in a title fight.

Rousey submitted Zingano with a straight armlock after Zingano rushed Rousey on the opening bell; Zingano quickly tapped out of the hold.

Venezuelan President Nicolas Maduro condemned what he says are moves by the United States to unseat him at a rally on Saturday, Reuters reports.

"We have captured some U.S. citizens in undercover activities, espionage, trying to win over people in towns along the Venezuelan coast," Maduro said. "In Tachira, we captured a pilot of a U.S. plane (who is) of Latin origin (carrying) all kinds of documentation."

A U.S. embassy spokesman in Caracas declined to comment on Maduro's statements, saying that there had not been any official, diplomatic communication on the charges with the Venezuelan government. But an Obama administration official dismissed the accusations, calling them "baseless and false."

Maduro also said he would institute visa fees for Americans who want to enter Venezeula, reduce the number of U.S. embassy officials allowed in Caracas, and bar certain U.S. citizens from entering the country, including former President George W. Bush and former Vice President Dick Cheney.

Rand Paul may have been feeling a bit of good deja vu on Saturday — the Kentucky senator won the straw poll yet again at Saturday's Conservative Political Action Conference, The Washington Post reports.

Gov. Scott Walker (R-Wis.) finished just behind Paul in second place, in the last round of CPAC nods before primary voting for the 2016 presidential election begins. While Paul entered the weekend event as the prohibitive favorite in this year's balloting, his percentage of the vote actually dropped, from 31 percent in 2014 to 25.7 percent in 2015.

Voting attendees increased by nearly 20 percent from 2014, but organizers were quick to note that the results show “how fluid and open the race is.”

Silence is golden, according to the World Health Organization.

WHO figures say 43 million people ages 12-35 have suffered hearing loss, and another 1.1 billion teenagers and young adults risk damaging their hearing. The culprit? Listening to music "too much, too loudly," BBC News reports. 

And it's not just your laptop or office earbuds that could be doing damage. WHO warns that concerts and bars are a "serious threat" as they too expose people to unsafe sound levels. The organization recommends taking "listening breaks" if you must frequent such venues, and limiting daily music listening to one hour, max.

Twelve years after thousands of artifacts were looted in the aftermath of the U.S.-led invasion, Iraq's national museum in Baghdad reopened on Saturday, The Washington Post reports.

Iraqi officials have worked for more than a decade to recover some 15,000 stolen artifacts. So far, about 4,300 pieces have been recovered.

The grand reopening was moved up, Prime Minister Haider al-Abadi said, as a message of defiance to Islamic State militants. Recent video showed purported ISIS members breaking statues at a museum in Mosul.

"Our hearts were broken when those artifacts were broken in Mosul," said Qassim Sudani, a spokesman for the Ministry of Tourism and Antiquities. "Now the national museum has reopened, it will be a lung that allows the Iraqi people to breathe again."