10 things you need to know today: February 2, 2016

1. Cruz and Clinton claim victory in Iowa caucuses

Sen. Ted Cruz of Texas won the Republican caucuses in Iowa, dealing national frontrunner Donald Trump a humbling defeat in the first presidential nominating contest. Sen. Marco Rubio of Florida finished a strong third, just behind Trump. Hillary Clinton claimed a narrow victory over rival Bernie Sanders in the Democratic race. Sanders, a Vermont senator and self-described democratic socialist, trailed by just four delegates and declared the outcome a "virtual tie."

The New York Times The Des Moines Register

2. WHO declares global health emergency over Zika

On Monday the World Health Organization declared the spread of the mosquito-borne Zika virus to be a global health emergency. The move will help mobilize funding and personnel to fight the illness, which the WHO already has warned could infect four million people throughout the Americas by the year's end. Public officials "strongly suspect" that Zika has caused devastating brain defects in 4,000 newborns in Brazil.

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The Washington Post

3. Google's parent company overtakes Apple as world's most valuable corporation

On Monday Google's parent company, Alphabet, reported profit and sales numbers that beat Wall Street expectations, thanks to strong sales of ads on mobile devices and YouTube. Alphabet's stock surged by as much as 9 percent in extended trading. That was enough to push its market capitalization above Apple's to $558 billion, making Alphabet the most valuable publicly traded company in the world.

MarketWatch Techcrunch

4. Taliban bomber kills 20 at Afghan police station

A Taliban suicide bomber attacked a Kabul police station on Monday, killing at least 20 police officers. Another 29 people were injured. The U.S. military said attacks against Afghan soldiers and police rose by 28 percent in 2015. Col. Michael Lawhorn, a spokesman for NATO and United States forces in Afghanistan, said the increase was expected as Afghan forces experienced "significantly increased operational tempo" last year after NATO's combat mission ended.

The New York Times

5. Teacher released due to lack of evidence she helped inmates escape

A teacher at a Southern California jail suspected of helping three inmates escape is being released from custody, officials said Monday. Prosecutors don't have enough evidence to continue holding the woman, Nooshafarin Ravaghi, 44. Police did, however, arrest a man, Loc Ba Nguyen, and accused him of smuggling in tools that Bac Duong, 43, Hossein Nayeri, 37, and Jonathan Tieu, 20, used to break out of the Central Men's Jail in Santa Ana. All three inmates are back in custody.

New York Daily News

6. O'Malley and Huckabee suspend campaigns after Iowa caucuses

Democrat Martin O'Malley and Republican Mike Huckabee ended their presidential campaigns on Monday night after failing to pick up significant support in the Iowa caucuses. "This fight continues," said O'Malley, a former Maryland governor. "We fought very, very hard in order to give the people a choice, and the people made their choice tonight." Huckabee, a Southern Baptist minister and former Arkansas governor, won Iowa in 2008.

CNN

7. White House plans $1 billion in cancer research funding

On Monday the White House announced that it will propose spending $1 billion on cancer research over the next two years. The money would go toward developing vaccines and improving detection and treatment. The announcement came as President Obama and Vice President Joe Biden were launching the first meeting of the White House Cancer Moonshot Task Force, an initiative that Obama unveiled in his State of the Union address, in which he called to "end cancer as we know it."

USA Today

8. Yahoo expected to cut 1,600 jobs

On Tuesday Yahoo CEO Marissa Mayer is expected to present a plan to cut costs by closing several business units and reducing the company's workforce by up to 15 percent (about 1,600 jobs). The announcement comes as the company announces its fourth quarter results. Yahoo hired Mayer in 2012 to turn around the struggling one-time internet powerhouse. The cost-cutting could buy Mayer time as activist hedge fund Starboard Value calls for new management and a sale of the business.

The Wall Street Journal MarketWatch

9. 3 teens arrested over deadly Seattle homeless-camp shooting

On Monday police arrested three teenage boys over a shooting that left two people dead and three wounded at a Seattle homeless encampment known as "The Jungle." The suspects were 13, 16, and 17 years old. Police identified the two people killed as 45-year-old Jeannine Zapata and 33-year-old James Tran. Local officials late last year declared a state of emergency regarding homelessness, but Seattle Mayor Ed Murray said the encampment "has been unmanageable and out of control for almost two decades."

The Associated Press

10. Top chef Benoit Violier dies in apparent suicide

Renowned French-Swiss chef Benoit Violier, 44, was found dead of apparent suicide in his house in Crissier, Switzerland, local police announced Monday. Violier's Restaurant de l'Hotel de Ville received the Michelin guide's top award, three stars, and in December was named the world's best restaurant in France's prestigious La Liste rankings.

The New York Times