Agents across the nation scrambled to prevent attacks on U.S. leadership.
The judge convened a hearing after attorneys for Cole Allen requested over the weekend that he be removed from suicide watch at D.C.'s jail facility.
Pirro said there is evidence that buckshot from a shotgun carried by alleged White House Correspondents' Dinner attacker was "intertwined with the fiber" of a bulletproof vest worn by a Secret Service officer.
The Secret Service Presidential protection mission dates back to 1901; it was formalized after the assassination of President William McKinley.
A Secret Service agent in training who previously worked as an analyst with the presidential protection team was arrested this week on charges of felony eavesdropping.
A U.S. Secret Service agent assigned to former first lady Jill Biden's detail shot himself in the leg Friday, according to a USSS official.