Boris's latest mad-cap idea:
http://news.bbc.co.uk/1/hi/england/london/7998687.stm and other sources.

So, the idea is that this allows cyclists to move off before lorries and
thus not get trapped/killed when they move off and turn left. And it is
cited that 13 deaths occurred because of this. What they fail to say is how
many cyclists would be killed when they see the red light as a proverbial
"green light" to run the red without paying any attention to what's
approaching from their right and get subsequently hit by some other vehicle
crossing the junction on green. I'm sure they would be meant to give way,
blah blah blah, but would that happen in reality?

Quite barmy!