Bangladesh said three student leaders had been taken into custody for their own safety after the government blamed their protests against civil service job quotas for days of deadly nationwide unrest. Students Against Discrimination head Nahid Islam and two other senior members of the protest group were Friday forcibly discharged from the hospital and taken away by a group of plainclothes detectives. The street rallies organised by the trio precipitated a police crackdown and days of running clashes between officers and protesters that killed at least 201 people, according to an AFP tally of h…