Capitol riot exposed flaws of Trump's DHS, focused on immigration and not extremists, ex-officials say

Former Department of Homeland Security officials spanning the Bush, Obama and Trump administrations say the Jan. 6 siege of the U.S. Capitol exposed the shortcomings of an agency with an inexperienced staff and a misplaced focus on immigration instead of the rise of domestic threats over the past four years.

"They tend to be younger, with not as much experience. They don't have the incidents under their belts to know the proper protocols. So many protocols were not followed" on Jan. 6, said Elizabeth Neumann, who was deputy chief of...