Members of the Institute for Peace and Secular Studies gather around portraits of assassinated provincial governor Salman Taseer in Lahore on January 4, 2017, during a ceremony marking his death anniversary. 
Pakistan police arrested 160 people on January 4, 2017 at a rally to celebrate the assassination of a liberal provincial governor who called for the country's tough blasphemy laws to be reformed. Salman Taseer was gunned down in Islamabad by his own security guard Mumtaz Qadri on January 4, 2011 after he spoke out for Asia Bibi -- a Christian mother on death row over blasphemy. / AFP / ARIF ALI        (Photo credit should read ARIF ALI/AFP/Getty Images)