ANKARA At least three international students recently detained by US authorities have been transferred to remote immigration detention centers in Louisiana that have faced repeated human rights abuse allegations, American media reported Tuesday. The students are identified as Mahmoud Khalil, a Columbia University student; Alireza Doroudi, a doctoral student at the University of Alabama; and Rumeysa Ozturk, a PhD candidate at Tufts University. NBC News reported that all were arrested near their