U.S. intelligence agencies are also known to track suspect bloggers and tweeters on the Internet to help identify Taliban fighters or terrorist operatives.
Twitter executives have told lawmakers that the micro-posts do not violate the website's terms of service because the Taliban is not listed by the State Department as a foreign terrorist organization.
Twitter executives have told lawmakers that the micro-posts do not violate the website's terms of service because the Taliban is not listed by the State Department as a foreign terrorist organization.
Pressure also is coming from the NATO-led International Security Assistance Force in Kabul, the Afghan capital.
This year, the ISAF began battling the pro-Taliban messages with tweets that countered insurgent claims. As a result, the two sides sometimes exchange a dozen tweets a day.
Some legal experts contend that the pro-Taliban messages are protected under U.S. law.
