Two U.S. citizens plan to sue the Immigration and Customs Enforcement Agency for searching and detaining them in an Omaha parking lot last April. Arquimides Bautista, 20, and Rosalba Artimas, 46, say they were detained while on a bus trip with 40 colleagues from Denver to Omaha for an Amway business convention. The incident began after ICE agents overheard the group speaking Spanish at a local McDonald’s. Hans Mayer, an American Civil Liberties attorney representing Bautista and Artimas, says the agency had no legal basis for demanding proof of citizenship. ICE reports that 36 of 42 passengers on the bus were undocumented immigrants. All 36 were eventually released and ordered to appear before a federal immigration judge.