Dangerous anti-censor software?

Click on this link to read a Washington Post article about Haystack, an application designed to circumvent Iranian censors.  Human testing of the software in Iran has been halted for fear that authorities might be able to determine the identities of the testers.  The software anonymizes the testers, but security in the program was apparently lax.  Should the U.S. government (which approved Haystack's export to Iran) be encouraging the creation of programs that defeat other governments' attempts to control the Internet in their countries?