Amtrak train derails in Washington state
An Amtrak train derailed in Washington state this morning, leaving at least one of the cars dangling from an overpass over a highway, officials said.
With trains a potential target for terrorism, special operation teams in Philadelphia are using drones to detect possible threats.
ABC News' Pierre Thomas and former NYPD Commissioner Ray Kelly analyze the police work that led to the takedown of Ahmad Khan Rahami.
ABC News' Pierre Thomas and former NYPD Commissioner Ray Kelly analyze the investigation into the closely-timed attacks and any possible connections.
Investigators say the shooters' residence was loaded with resources to make homemade explosives.
Inspire, the terrorist group's online magazine, urges believers to target prominent U.S. businessmen like Bill Gates, Warren Buffett and Michael Bloomberg.
Seven women and five men are now deliberating the fate of Dzhokhar Tsarnaev inside a federal courthouse in Boston.
Prosecutors and the defense for Boston Marathon bombing suspect Dzhokhar Tsarnaev began making their closing arguments today, after which the jury will be sent to deliberate Tsarnaev's guilt or innocence in a case that could carry the death penalty.
ABC News' Tom Llamas on the defense's case to show Dzhokhar's brother, Tamerlan, influenced his actions leading up to the bombings at the Boston Marathon.
ABC News' Aaron Katersky has the latest details from day ten of testimony in the federal terrorism trial against Dzhokhar Tsarnaev.