Do you agree or disagree? I'm not sure if this law is in place in the US.
Personally, I can't believe people do it! I remember being parked up at my local supermarket and the car next to me, all the windows were closed. There were three kids in the back and the guy up front was smoking. Like I said, the window was shut - I was in shock.
I think it's about time they made it against the law.