In Minnesota, some U.S. citizens have told CBS News they are carrying their passports as federal immigration officers continue to detain people in the city. CBS News' Lana Zak spoke to three people who explained why they are carrying the documentation with them. Immigration enforcement officers have been carrying out massive operations in the city for weeks, which have been met with protests. Tension and fears escalated after federal agents killed two people – both U.S. citizens – in Minneapolis this month. One woman, an American citizen from Hawaii, told Zak that she fears she and her children could be racial profiled, so she is having her kids carry their passports. A total of 3,000 ICE and Customs and Border Protection agents are now operating in the city and a top ICE official said Sunday that federal agents had carried out roughly 3,400 arrests in the area, though he did not say how many arrestees had criminal records. #ice #minnesota #immigration