Police and forensic experts examine the site of an explosion in downtown Makhachkala, Dagestan on Wednesday, May 1, 2013. Russian police say a bomb exploded in a busy shopping area in

 

              Police and forensic experts examine the site of an explosion in downtown Makhachkala, Dagestan on Wednesday, May 1, 2013. Russian police say a bomb  exploded in a busy shopping area in
Police and forensic experts examine the site of an explosion in downtown Makhachkala, Dagestan on Wednesday, May 1, 2013. Russian police say a bomb exploded in a busy shopping area in the capital of the restive republic of Dagestan, killing at least two people. Dagestan is plagued by Islamic insurgents who frequently mount small attacks on police. (AP Photo/ NewsTeam/ Suleyman Aliev)