KNTV NBC Nightly News With Lester Holt January 6, 2022 02:40:00
History. pete williams has an exclusive look at that effort >> reporter: a year after the worst attack on the u.s. capital since the british torched it 200 years ago, the fbi hasn't stopped working to identify rioters this exclusive look shows agents and analysts still combing through tens of thousands of photos and videos investigators also used facial recognition software and cell phone records that allowed them to plot the movement of individual people inside the capital, the largest use ever of that technique. >> the attacks happened all over the capital grounds. >> reporter: the man in ch...