Why do we need special legislation designed to control foreign libel claims against U.S. citizens?

As mentioned earlier, U.S. plaintiffs sometimes engage in forum shopping by trying to have their complaints heard by a court that is likely to be sympathetic to their claims. Libel tourism is essentially forum shopping on an international scale. Rather than filing a defamation lawsuit in the United States, where the freedoms of speech and press are strongly protected, a plaintiff files it in a foreign jurisdiction where there is a greater chance of winning.