Of course dangerous cyclists should be prosecuted - as should dangerous drivers. Trouble is, most dangerous driving or cycling I see isn't prosecuted because it doesn't take place when a copper is around. So the issue isn't really about prosecution, it's about taking personal responsibility. And whilst everyone needs to do this, the larger, heavier and faster your vehicle the more pressing the need...

Also I think some of the road rules around cycling may be different in the UK and the US. For instance, cyclists moving to the front of a queue of stationary cars at a traffic light is perfectly ok in the UK as far as I am aware - although again it is sensible to do this safely. And as for the green box at junctions with a bike symbol painted on it, oi motorists! That's for us. Keep out!