In Afghanistan, the Taliban is claiming responsibility for a suicide bomb attack near the U.S. Embassy in the capital Kabul Thursday that killed 12 people and wounded 42 others. Among the dead were two NATO soldiers, one from Romania and the other from the U.S. The blast came as a U.S. State Department negotiator was returning to Doha, Qatar, for the next round of talks with the Taliban aimed at ending the longest war in U.S. history. According to the Pentagon, there have been at least 2,437 U.S. troops killed in Afghanistan since 2001.