The USS Porter, a U.S. Navy guided-missile destroyer, was damaged in a collision with a Japanese-owned oil tanker just outside the strategic Strait of Hormuz on Sunday, Aug. 12, 2012. The collision left a gaping hole in the starboard side of the Porter, but no one was injured on either vessel, the Navy said. (AP Photo/U.S. Navy, Jonathan Sunderman)

Photo by: Jonathan Sunderman

The USS Porter, a U.S. Navy guided-missile destroyer, was damaged in a collision with a Japanese-owned oil tanker just outside the strategic Strait of Hormuz on Sunday, Aug. 12, 2012. The collision left a gaping hole in the starboard side of the Porter, but no one was injured on either vessel, the Navy said. (AP Photo/U.S. Navy, Jonathan Sunderman)