The European Commission launched a legal case on Tuesday against Poland, Hungary and the Czech Republic for refusing to take in asylum seekers, ratcheting up a bitter feud within the 28-nation bloc about how to deal with migration. The eurosceptic, nationalist-minded governments in Poland and Hungary have refused to take in anyone under a plan agreed by a majority of EU leaders in 2015 to relocate migrants from frontline states Italy and Greece to help ease their burden. The Czech Republic initially accepted 12 people but has since said it would not welcome more.