Dr. Zuhdi Jasser isn't reluctant to criticize those who support terrorism, but now he's being threatened with libel - from someone who lives in the Middle East.

While Jasser makes these statements from Phoenix through the group he founded, the American Islamic Forum for Democracy, a libel suit was filed against him in Britain, where laws are more favorable to plaintiffs than in the U.S.

"It's nerve-racking because we're not a billion-dollar nonprofit," said Jasser, who practices internal medicine and nuclear cardiology in Phoenix.

Experts call such cases libel tourism, where parties use the Internet's reach to file suits against U.S. residents in countries – not necessarily their own – where defamation laws give them a better chance of prevailing.

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