The financial crisis was caused by a deregulated financial centre, deregulated by Thatcher.
Then all you needed was the greed of the very wealthy.
Erm, the current regulation system was put in place by Labour. Prior to Labour, banks were regulated by the BoE...
And the financial sector wasn't deregulated, there were plenty of regulations, they just weren't effective, especially after the shift to the tri-partite regulation system that Brown introduced.
Incidentally, what does this have to do with the quote of Brown recognising the need for fiscal responsibility right up until he hit power? He was burning through public debt long a good 6 years before the recession started, even as the economy was growing.