Schools are being built to deter number of mass shootings victims, complete with curved walls, hiding places and bulletproof doors. Trump attacks London Mayor Sadiq Khan, blaming him for 'knife crime' while the US experienced 289 mass shootings in 2019 alone. Janika White LIVE on the NYPD tricking an innocent 12 year old into handing over his DNA, and the dangers of law enforcement collecting huge genetic databases without proper laws in place. AOC and Greta Thunberg respond to consistent baseless attacks and abuse against their climate activism. Democratic candidates unveil their climate plans. Bill O'Reilly attempts a sad comeback with a new book that includes Trump quotes about how he's planning to 'take revenge' on the media after he leaves office.