It's difficult to reach a rational verdict in the midst of the blog-barrage, Twitter-frenzy and crass party point-scoring that surround our new national pastime, but as the party leaders neared the 90-minute time limit, it was at least obvious that this second debate had brought feistier and more committed performances from all three of them. David Cameron and Gordon Brown wasted no time in demonstrating how well they'd learned Nick Clegg's trick of looking straight into the camera and addressing us viewers, though frankly you'd have thought that should always have been pretty bleeding obvious to the swarms of media handlers these people have on tap.