3 slides When law enforcement failed to anticipate that pro-Trump supporters would devolve into a violent mob they fell victim to what one expert calls "the invisible obvious." He said it was hard for authorities to see that people who looked like them could want to commit this kind of unconstitutional violence. Credit: AFP via Getty Images Why Didn't The FBI And DHS Produce A Threat Report Ahead of The Capitol Insurrection? By at 4:16 pm NPR In late December, the New York Police Department sent a packet of material to the U.S. Capitol Police and the Federal Bureau of Investigation.