No matter how enraged someone may be by terrorism, it would be ignorant to attack a mosque. It is doubly ignorant to attack a Sikh temple, as two have been in the UK. Via Sepia Mutiny:

You know, I had naively hoped that this wouldn’t happen across the pond. Contrary to America, where Sikhs are more scattered and less understood, I thought that in England, people were more knowledgeable about Sikhism, that they could tell the difference between al-Qaeda and an innocent group of people who had nothing to do with transportation treachery. Perhaps some, if not most of the English can…but much to my alarm, there are quite obviously a dangerous few who can’t. To them, a turban is a turban is a turban. Bend it like Beckham and bomb it like someone ignorant.

“Such attacks are an affront not only to the great Sikh religion but to entire humanity,” the spokesman said.
“The Sikh community in the United Kingdom has carved out a highly respected place for itself in the British society through its industriousness and commitment,” the spokesman said.

None of that matters. We are foreign and we wear turbans, just like that bastard Osama. Thanks to a coincidence of complexion, we are complicit and we will pay.