The United States is tightening security on military bases and warning Americans abroad to be careful in the run-up to the 10th anniversary of the Sept. 11 attacks.
By MARK LANDLER and ERIC SCHMITT, New York Times
Wed, 09/07/2011 - 11:21am
The United States is tightening security on military bases and warning Americans abroad to be careful in the run-up to the 10th anniversary of the Sept. 11 attacks.