By PAUL WISEMAN U.S. longshoremen reached a contract agreement with ports and shippers Wednesday, averting a potential strike that could have damaged the American economy. Related Articles National News | Military doctor pleads guilty to dozens of sexual abuse charges National News | Service workers union rejoins AFL-CIO after 20 years, just ahead of Trump’s inauguration National News | Supreme Court Justice Samuel Alito says he spoke with Trump on Tuesday National News | Fire hydrants ran dry in California, highlighting a major problem in firefighting National News | Guantanamo’s prisoners have reached a pivotal moment.