Mar 29 2019 Interstate 68 was shut down for around four hours after someone threatened to kill President Trump and to blow up the Pentagon. Secret Service and the FBI are coordinating with state police on the investigation. Wednesday for speeding along the eastbound lanes. West Virginia State Police on Wednesday morning shut down Interstate 68 for several hours near the Maryland border after a man allegedly threatened to assassinate President Donald Trump and bomb the Pentagon, according to reports. West Virginia State Police is working with both the FBI and U. Secret Service are still investigating the incident. Maybe the president brilliantly played the media.