The explosion follows a threat a day earlier by the Taliban, who vowed in an e-mail to CNN to take "strong revenge" for the March 11 shootings in the Panjwai district.
MORE: http://www.cnn.com/2012/03/25/world/asia/afghanistan-unrest/index.html
Earlier...
2 kids killed in Kandahar suicide bombing
http://www.cnn.com/2012/03/22/world/asia/afghanistan-violence/index.html
