Amazon employees are striking after the online retail giant missed a deadline to begin negotiations for a union contract. Roughly 10,000 employees have gone on strike as of Dec. 19. Workers are forming picket lines in New York City,

Hundreds of drivers at Amazon facilities in seven locations nationwide launched a strike Thursday morning, potentially disrupting holiday deliveries in an effort to get the online retailing giant to recognize their affiliation with the Teamsters union and negotiate a labor contract.