Via AFP:
Russia beefed up security and mourned its dead on Tuesday as the toll from jarring successive-day suicide strikes in the run-up to the Sochi Winter Olympic Games rose to 34.
The southern city of Volgograd began to bury the first victims of Sunday's bombing of the heartland hub's main railway station that killed 18 people and which officials have provisionally blamed on a young woman from the restive North Caucasus region of Dagestan.
A second suicide attack on a trolleybus packed with students on Monday that investigators pinned on a male assailant has now claimed 16 lives.
The blast...
