(Police have said the bombs may have been part of a plot designed to show anger over the Middle East crisis.)
We shouldn't prevent bombings in our cities as if we do so we may be violating Muslims' right to free speach (1st Amendment). Apparently the only way Muslim can communicate "anger" is by blowing people up.
Baloney!
They also are able to express anger in more normal and socially acceptable ways: burning cars, fire bombing embassies, stoning police, rioting, cutting throats....