Human rights groups have criticized the failure of authorities to clamp down on Lashkar-e-Jhangvi, a Sunni organization that has admitted carrying out much of the violence against Shiites.
MORE: http://www.cnn.com/2013/07/01/world/asia/pakistan-violence/index.html
See also...
Pakistan blast kills at least 28
http://www.cnn.com/2013/06/30/world/asia/pakistan-blast/index.html
