A U-turn on YouTube
Thus the prime minister has finally responded to the slow-burning scandal of MPs' expenses - a scandal those close to him fear could taint his government just as one word - "sleaze" - tainted John Major's.
At first, Gordon Brown insisted that the question of how to reform MPs' expenses was a matter for Parliament not for him or the government.
Indeed, when proposals very similar to those he's outlined today were defeated in the Commons, he missed the vote and many of his colleagues backed the status quo.
Later, he called for an enquiry to report after the election.
Then, under pressure, he brought forward the timetable but rejected calls for him and other party leaders to lead the way to reform.
The anger generated by the home secretary's claim for the cost of an adult movie watched by her husband seems finally to have convinced Mr Brown that - fairly or not - he was getting the blame for a system that the public regards with anger and contempt.
Proposing reform and getting it agreed is, of course, a very different matter and will require many, many MPs - and not just the prime minister himself - to perform a U-turn.