WJLA has broken the story that some cyclists in DC run red lights and they even have footage of it! I'm shocked, shocked that such a things is going on.
They don't provide any data to let us know what percentage of cyclists do this, but they do say that they caught dozens over several days (which is actually a lower rate than I'd expect). Nor do they have any information on how dangerous this is, though they have footage of one cyclist who passes in front of a car about 2 seconds before it would have hit him and then a pedestrian somewhat over-reacting to him. Not good cycling by any measure, but if that's the worst they found over several days that's not so bad. They also have some woman sitting behind the wheel stating that it's dangerous, so I'm convinced.
Mostly they focus on the fact that it's not enforced very much, but they don't make the case that it needs to be enforced more. And they don't interview anyone from WABA.