From The Christan Science Monitor:
As the war in Iraq began, the Pentagon embedded a Chinese reporter for five days on the USS Kitty Hawk. Some officers thought it odd to invite a reporter from a state that many see as the greatest long-term military threat to the US. But the Pentagon felt a close look by China at an aircraft carrier was a good deterrent.
Chinese PLA officers have ridden US fighter jets, boarded nuclear submarines, sat in on classes at West Point, and visited the strategic command at Cheyenne Mountain. But US military visits to China have been mostly a matter of seeing parades or an empty base.