The Department of State warns U.S. citizens against travel to Afghanistan. The security threat to all U.S. citizens in Afghanistan remains critical. This travel warning reminds U.S. citizens of ongoing security risks, including kidnapping and insurgent attacks.
There is an ongoing and increased risk to U.S. citizens and Non-Governmental Organization (NGO) workers of kidnapping and assassination throughout the country. Kabul is also considered at high risk for militant attacks, including rocket attacks, vehicle borne IEDs, and suicide bombings. More than 50 such attacks were reported in Kabul from January to November 2011.
The U.S. Embassy's ability to provide emergency consular services to U.S. citizens in Afghanistan is limited. So we should all be careful.
Read more about this travel warning at travel.state.gov.