By Karina Tsui, CNN (CNN) — Nearly a dozen known students and faculty members at colleges across the country have been detained by federal agents amid the Trump administration’s crackdown on immigration, which on college campuses, has taken aim at pro-Palestinian student activists and Israel critics. Many of those detained have been granted the right to live in the US either as permanent residents or through temporary work or student visas. Their rights, however, have been put into question under new, sweeping immigration orders that some legal experts fear may be used liberally to clamp down on dissent. Speaking to...