Great - this isn't a "serious" incident? Al Qaeda really raised the bar, didn't they?
This is extremely serious, in spite of the fact that the bombs didn't detonate. Even if it's just a copycat, it's extremely serious. Why? Because it means one of two things:
1) Terror cells have been activated, or
2) It's every radical Muslim for himself,
Close the mosques.
Witness on BBC has just said the guy with a rucksack was an 'English' guy. That is short hand for 'white'. Curious? Bosnian? Chechyan?