The crackdown in Minnesota and the deadly shootings of two U.S. citizens are raising questions about the tactics used by federal immigration agents. Amna Nawaz discussed that with former U.S. Customs and Border Protection Commissioner Gil Kerlikowske.

Chicago teacher's assistant Marimar Martinez was shot by a U.S. Border Patrol agent in October. Martinez's lawyer showed 60 Minutes new video that he said contradicts the Department of Homeland Security's claim that Border Patrol agents were "boxed in" by Martinez and other vehicles.

As ICE and Border Patrol agents increasingly work alongside one another nationwide, it's often become difficult to tell them apart.

National Border Patrol Council President Paul Perez said that despite heavy criticism from the media and Democrats, as well as the consistent presence of agitators.

ICE and Border Patrol officers have used aggressive tactics during the recent crackdown in Minnesota, including breaking down the door of a family’s home without a judicial warrant and pulling people from vehicles.