Like others have noted, I have seen bicyclists blow thru red lights & stop signs as if the law didn't apply to them. It does, of course, and they should be fined...of course, here the police doesn't give anyone tickets for running a stop sign or red light. I, and I'm sure many others, have seen many more automobile drivers roll right through stop signs than cyclists. Here (in Albuquerque, NM) we had a very successful red light camera program but the city was forced, by a popular vote, to remove the cameras because they were seen as unfair to motorists or something.

Close to where I live, we have a "multi-use" trail, which is regularly used by walkers, joggers, parents pushing strollers (four-abreast), skateboarders, dog walkers and, yes, cyclists. When the road was widened last year, a separate bicycle lane was included - not quite 50% of the city council members objected because the "bike path" was there for cyclists to use.