U.S. contractor Alan Gross, held by the Cuban government since 2009, was freed Wednesday as part of a landmark deal with Cuba that paves the way for a major overhaul in U.S. policy toward the island, senior administration officials tell CNN.
#AskACop was launched as an opportunity for the public to pose questions of police officers, who have been under the spotlight in the wake of Michael Brown and Eric Garner's deaths. It became a trending on Twitter, as many used the hashtag to rail against what they viewed as some police officers' unjust treatment of African-Americans.
Its name means "bending over in pain." It has no treatment or vaccine. Its symptoms resemble Dengue fever. And it has infected more than 1 million people -- 155 of them fatally -- since spreading to the Americas one year ago.