Let's look at the last week or two...

Chechnya --> Car bombing in government building
Chechnya --> Suicide bombing at funeral
Saudi Arabia --> Triple Car bomb Western housing complex
Pakistan --> Grenade attacks on 20+ Shell gas stations
Casablanca, Morocco --> 5 total bombs including Car bombs and suicide bombers
Israel --> 5 seperate suicide bombings including one on a bus and this latest at a mall

Maybe, just maybe there's a pattern here, eh?
The common denominator -
Fanatical Islamists, obsessed with their view of "religion"
But let's not offend them by saying so
It would be too much to ask for those Muslim clerics responsible for their flock to denounce such actions loudly and repeadedly. No, that would be asking too much.