I am happy with the U.S. banning Ephedra because I understand there was scientific proof of 150 heart attacks last year because of it.
An opposer gives a good argument:
"The government just took a freedom away from you... the freedom of choice. If you let the government decide what's right and what's wrong, soon only the government will decide what you can and cannot buy."
Great argument, but still, something causing heart attacks has no need to be on the market.