An Amtrak train bound for Chicago was stopped suddenly Tuesday when a man began spouting terrorist threats. “We have to work in small groups ... They can hold you for 18 months ... Do they have security on these trains? ... Are you with me or not?” the 64-year-old passenger allegedly said into his cell phone while riding the train, according to Chicago Breaking News Center. Ojore Nuru Lutalo from Elizabeth is currently being held by authorities in Denver. Police said in an affidavit that passengers overheard the man saying he hadn’t killed anyone yet and talked about going to...