Chicago — The rules of engagement for federal agents amid President Trump's immigration crackdown have come under scrutiny, with one former Immigration and Customs Enforcement director telling CBS News that agents have been put "in a terrible position" and are being tasked with operations "in a city where they don't belong."

From vehicle crashes to forceful takedowns , encounters with federal agents captured on cellphone video have gone viral amid the crackdown. Recent incidents have involved ICE as well as U.S. Border Patrol, whose agents are trained to catch drug traffickers and human smugglers in the deserts along the U.S. southern border. Now, though, many of those Border Patrol agents have been deployed on the streets of cities like Chicago .

"What strikes me imme

See Full Page