Bangladeshi police stop a motorist for checking in front of the U.S. Embassy building that remained closed due to security threat in Dhaka, Bangladesh, Sunday, Aug. 4, 2013. (AP Photo/A.M. Ahad)

Photo by: A.M. Ahad

Bangladeshi police stop a motorist for checking in front of the U.S. Embassy building that remained closed due to security threat in Dhaka, Bangladesh, Sunday, Aug. 4, 2013. (AP Photo/A.M. Ahad)