 us orders new visa reviews for arriving students we ve learned in the past couple of days that more students have been accused of involvement in the boston marathon bombings one of those students was here without a valid student visa as a result homeland security has ordered border security agents to verify that every international student arriving here has a valid student visa wouldn t you have expected that to be standard operating procedure apparently there was a glitch in the system read more  wwwnewsmaxcom newsfront bostonbombingstudentvisas 20130503 id 502736 