Internet anti-censorship tools are being overwhelmed by demand
   Internet freedom agenda championed by the Obama administration.
   The United States spends about $30 million a year on Internet freedom,
   governments in China, Iran and other countries where Internet freedom
   pervasive censorship. The most widely used tools route Internet traffic
   through other countries, allowing users to bypass Internet firewalls as
   The task of keeping the Internet free, however, is becoming harder.
   The online crackdown is spurring calls from Internet freedom advocates