Well, this is in the Constitution, doncha know? (And if it isn't, the Supremes or some appellates can write you a 2000 page opinion to say that it is!)
A small change in this area would go a long way, in my opinion. A foreigner driving a car would have to have an international driver's license (the way it works in other countries,) which would immediately identify him as a foreigner. Sorry, no driver's licenses for foreign nationals. A foreigner breaking US laws like Mr Atta when he was stopped should get his ass hauled to jail and be deported, not given a gentleman's court date far off in the future that he will likely ignore. All this, I think, is the trickle down effect of the OJ/Mumia criminal justice system. It's broken, it's not about justice, it's not about the citizens' safety, it's not about the country's security, it's only and entirely about itself!