Is it a surprise to see an attack in London?

Sadly, it really isn't, given London's longtime reputation as a haven for Islamic radicals who've been thrown out of places like Pakistan and Syria.

The linked article is maddening:

For many years before September 11, 2001, Britain's capital was known derisively throughout the world as Londinistan because of the preponderance of extremist groups that had set down roots, publishing tracts and newsletters and providing financial and propaganda support to overseas activists such as Hamas.

Perhaps something good could ultimately come from today's tragedy. Perhaps the people of Britain will see this as a wake up call. It's time to get serious.