Okay, but do you believe the Phelps people should be permitted to stand on the sidewalk outside the home of a dead US service member and ask the family questions about what their son/husband/father died for?
There have been folks willing to follow the Phelps gang around with paintball guns...
I guess if they show up there (in front of the homes of someone who died in Iraq/Afghanistan, they might get painted...
The more I think about it, paintballs is a form of Freedom of Expression, but it has the problem of damaging property. By the same token, the emotional damage done by the Phelps can be heard in a Civil Court.
Remember that O.J. Simpson was convicted in a Civil Court, where there was less burden of proof.
Now I might say that the Phelps IRS dodgers may have the right of Freedom of Expression, but if this results in emotional injury, then they should filed with a Civil Suit (or many, many Civil Suits)...
A shorter reply:
During the Vietnam War, apparently protestors did this with parents of servicemen who were lost.
The movie Hamburger Hill tells one such instance. That was why one person re-upped for Vietnam...
What they described in movie Hamburger Hill was probably much sicker than the Phelps gangs acts...