Ukrainian Prime Minister Arseniy Yatsenyuk says Russian President Vladimir Putin is bent on slicing off more territory from neighboring lands in an attempt to rebuild a romanticized ideal of the Soviet Union.

In an interview with Meet the Press that will air Sunday, Yatsenyuk says Putin has his sights set on eastern Ukraine, where pro-Russian separatists have in the past two weeks taken over buildings and sparred with security forces.

"President Putin has a dream to restore the Soviet Union," he says, "and every day he goes further and further, and God knows where is the final destination."

The remark comes days after Putin referred to eastern Ukraine as "new Russia" and warned that he could send troops to the region to protect ethnic Russians. And it comes as Ukrainian troops are engaged in a deadly clash to dislodge entrenched separatists from the area. A shootout at a checkpoint on Sunday left one dead and hospitalized others.

The U.S. government to some degree shares Yatsenyuk's concern. Putin infamously said in a 2005 speech that the collapse of the Soviet Union was the "greatest geopolitical catastrophe of the century." --Jon Terbush

Beekeepers in the United States saw a third of their honeybee colonies die between April 2016 and April 2017, an annual survey finds. That sounds grim, but it's actually a slight improvement over similar assessments in the last decade, in which an average of 40 percent of the colonies died off annually.

"I would stop short of calling this 'good' news," said Dennis vanEngelsdorp, a University of Maryland professor who is also a project director at the Bee Informed Partnership. "Colony loss of more than 30 percent over the entire year is high. It's hard to imagine any other agricultural sector being able to stay in business with such consistently high losses."

Some of the dead colonies may be salvaged, but the process isn't easy. One bumblebee species was added to the federal Endangered Species List earlier this year, and steady decline of bee populations is a serious and widespread problem that is believed to be linked to pesticide use.

"Bees are good indicators of the landscape as a whole," said Nathalie Steinhauer, who worked on the new survey. "To keep healthy bees, you need a good environment and you need your neighbors to keep healthy bees. Honeybee health is a community matter." Bonnie Kristian

President Trump may be asked to subject his tweets to legal scrutiny before posting them, The Wall Street Journal reported Friday night in a story covering changes to White House procedure Trump will entertain upon his return home from his tour abroad Saturday evening. The tweet vetting would be designed to avoid unforced errors as the Trump campaign and administration undergo scrutiny in federal investigations concerning Russian interference in the 2016 election:

One major change under consideration would see the president’s social media posts vetted by a team of lawyers, who would decide if any needed to be adjusted or curtailed. The idea, said one of Mr. Trump's advisers, is to create a system so that tweets "don't go from the president's mind out to the universe."

Some of Mr. Trump's tweets — from hinting that he may have taped conversations with Mr. Comey to suggesting without any evidence that former President Barack Obama wire-tapped Trump Tower — have opened him to criticism and at times confounded his communications team. Trump aides have long attempted to rein in his tweeting, and some saw any type of legal vetting as difficult to implement. [WSJ]

Many of Trump's critics and supporters alike have repeatedly (and unsuccessfully) urged the president to curtail his tweeting habits, as his posts often come back to bite him politically. Bonnie Kristian

National Security Adviser H.R. McMaster on Saturday said he "would not be concerned" by backchannel communications with Russia, though he declined to specifically comment on allegations that President Trump's son-in-law and senior adviser Jared Kushner unsuccessfully attempted to arrange a secret communication channel between the Trump transition team and the Kremlin shortly after the election.

National Economic Council Director Gary Cohn and Press Secretary Sean Spicer also refused to discuss Kushner at Saturday's media briefing. "We're not going to comment on Jared," said Cohn. "We're just not going to comment."

McMaster did note the U.S. has "backchannel communications with a number of countries," though Kushner was a private citizen and not an authorized representative of Washington at the time when he allegedly spoke with Russian Ambassador Sergey Kislyak.

Kushner's legal team said Friday night he has "no recollection" of the alleged conversation with Kislyak, and he is happy to speak with federal investigators about his role in the Trump campaign. Bonnie Kristian

President Trump spoke Saturday at the U.S. Naval Air Station in Sigonella, Italy, one of the final events of his first tour abroad since taking office.

After an introduction from First Lady Melania Trump, the president began by pointing to a helicopter he could see landing in the distance, wondering if the craft contained Japanese Prime Minister Shinzo Abe — or perhaps "Justin from Canada," which is probably a reference to Canadian Prime Minister Justin Trudeau and not Canadian pop star Justin Bieber.

Trump's speech quickly turned to more serious matters, with a lengthy section about "eradicating the terrorism that plagues our planet." He condemned this week's terrorist attacks on concert attendees in England and Coptic Christians in Egypt, vowing cooperation with allies to "confront the shared threat of terrorism."

Toward the end of his speech, the president spoke of honoring fallen American forces on Memorial Day. "There is no peace without those willing to bear the scars and wounds of war," he said. "There is no strength without those brave enough to protect the weak and the people that need protection. And there is no prosperity at home without those willing to shoulder our burdens overseas."

"You are the warriors of freedom," Trump told the assembled troops. "You are the ones who protect the God-given freedoms that are the birthright of every single American child." Watch the entire speech below. Bonnie Kristian

Police evacuated London's Old Vic theater, located near Waterloo Station, during a performance on Saturday in response to an unspecified security threat. The area was isolated as "specialist officers" investigated the scene, but ultimately nothing suspicious was found.

The false alarm comes less than a week after a suicide bombing in Manchester, England, during an Ariana Grande concert left 22 people dead and dozens more injured. The play that was interrupted is a showing of Woyzeck featuring Star Wars actor John Boyega.

This is a breaking news story and has been updated throughout. Bonnie Kristian

President Trump will return to Washington on Saturday after the second day of the G7 summit in Italy, completing his nine-day tour through Saudi Arabia, Israel, and Europe. Saturday morning, Trump claimed on Twitter that his speech in Brussels Thursday is already producing results:

Trump's description of "payments" into a fund is misleading; NATO countries actually pledged in 2014 to hit a 2 percent of GDP target for their own defense spending. Only five allies have met that goal.

The president also used Twitter Saturday morning to address his decision on the 2015 Paris climate accord:

The other G7 member nations — Japan, Italy, Germany, France, Britain, and Canada — are all urging Trump not to exit the agreement made by former President Obama. They reaffirmed their "strong commitment" to the accord on Saturday, but Trump declined to join the declaration at that time. However, the White House on Friday said Trump's views on climate change are "evolving." Bonnie Kristian

Two people were killed and a third injured on a commuter train in Portland, Oregon, on Friday, by a man witnesses said was "yelling a gamut of anti-Muslim and anti-everything slurs." Unverified reports suggest the suspect may have been targeting two Muslim girls riding the train, one of whom was wearing a hijab.

The victims were attempting to protect other passengers when they were stabbed. "Terrible tragedy on Portland's Max Train," Oregon's Sen. Jeff Merkley wrote on Twitter of the attack. "Champions of justice risked and lost their lives. Hate is evil."

The suspect has been detained by police, who have deemed his rant to be hate speech. Neither the attacker nor the victims have been publicly identified. Bonnie Kristian