‘The threats persist’ in the U.S., says Homeland Security secretary on Sept. 11 anniversary

‘The threats persist’ in the U.S., says Homeland Security secretary on Sept. 11 anniversary

Homeland Security Secretary Alejandro Mayorkas joins Morning Joe on the 23rd anniversary of the Sept. 11, 2001 terrorist attacks to discuss the attacks and why he says the threats in the U.S. still persist. The Morning Joe panel also discusses the attacks. Credit to : MSNBC