So who's going to enforce that - and just how, without the same damn check points as at the airport.

Harass the commuters in that manner on either the San Joaquins or the Capitals, and just see how many continue to ride!

The DA and the conductor must follow up on every assault, or it will eventually get out of hand. I made the mistake of not following up on an assault charge once - boy did I learn the hard way.

Moreover, keep those damn parolees in the prison - at least those convicted of any sort of violence or threats of violence - and make them work for their own keep or starve.