Kenyans attend a memorial vigil in Nairobi for the victims of an attack by gunmen at the Garissa University College, April 7, 2015.
Goran Tomasevic / Reuters

Sadly, the al Shabab attack on Kenya’s Garissa University College that killed at least 147 people was nothing new. Since October 2011, when Kenya invaded Somalia to fight the terrorist group in its home territory, the group has launched more than 100 attacks inside Kenya that have claimed hundreds of lives and sent the country’s tourism industry into a tailspin. Many of the attacks have been as ruthless as this latest outrage: the group killed at least 67 in an attack on the Westgate Mall in Nairobi in September 2013, and in June 2014 took over a Kenyan town and systematically executed its non-Muslim

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