Regulation is generally light thanks to weak governance; engineers can try things out that are either prohibited or prohibitively bureaucratic elsewhere.
Most states now either prohibit capital punishment altogether or ban its use against the mentally retarded.
In civilian courts, rape shield laws either prohibit or limit questions about a woman's sexual history.
The world abortion map shows in red or pink those nations that either prohibit abortion altogether or restrict it severely.
At the same time, Hollywood distributors were either prohibited from distributing - or else chose not to distribute - their films.
Abortion is either prohibited altogether or is legal only where a woman's life is in danger in many parts of Africa.
Many states which have allowed recreational or medicinal marijuana either prohibit delivery or in effect ban it, making expansion for the delivery companies challenging.
However, the rise in the popularity of bowhunting corresponds with an increase in deer populations in suburban America, where hunting with firearms is either prohibited or severely restricted.
Most states either prohibit firearms on public campuses or leave it up to the colleges and universities, which nearly always opt to ban them.
Mr. Chang is one of several chefs who either prohibit food photography (at Ko in New York) or have a policy against flashes (at Seiobo in Sydney, Australia, and Shoto in Toronto).
