Federal prosecutors have filed additional terrorism-related charges against six additional people in connection with the July 4 shooting outside the Prairieland immigration detention center near Alvarado, Texas, with six other defendants scheduled to enter guilty pleas. The latest indictment was issued Friday and expands on earlier charges. According to the Associated Press, the new counts relate to President Donald Trump’s declaration of Antifa as a domestic terrorist organization. The violence occurred on July 4 outside the Prairieland facility, which is southwest of Dallas. Prosecutors say a group of suspects set off fireworks, vandalized vehicles and opened fire on responding officers....