Expenses: this better be good

With the Commons authorities desperately struggling to keep MPs expenses out of the public eye, media commentators should be worried about only one thing - that they won't be as dynamite as they were hoping:

Mr Cameron's aides disclosed that of the £21,359 he claimed in 2005-06 more than £21,200 was for the mortgage interest paid on his constituency home in Witney, Oxfordshire.

He is thought to have claimed less than £100 on utility bills and nothing on household furnishings or groceries. The disclosure will put Mr Brown under pressure to come clean over his expenses.

Looking particularly nervous this morning: Nick Robinson, who on the news last night raised the possibility that expenses details would lead to multiple MPs being driven out of politics with pitchforks and fire. If there aren't at least a dozen other Derek Conways, we're going to be disappointed, Nick. We'll start brushing up our Peter and the Wolf anecdotes right now.