SAN FRANCISCO -- A U.S. Air Force HH-60G Pave Hawk from the 129th Rescue Wing, California Air National Guard, Moffett Federal Airfield, Calif., hovers near the U.S. Coast Guard cutter Tern in the bay here Jan. 28, 2009. The two services were conducting vertical insertion training, which is a fast-paced technique used to effectively deploy law enforcement teams to a high-risk situation.