<p>China has obtained military navigation technology from Boeing used on advanced U.S. missiles and warplanes that was improperly approved by the State Department, according to U.S. government officials.</p>
<p>The dual-use commercial-military items, known as QRS11 gyroscopic microchips, were sent to China inside the guidance systems of several Boeing 737-800 commercial jets sold to China Southern Airlines, one of several state-run Chinese airline companies. "We are deeply troubled by the decision to export military items to the [People´s Republic of China] absent the required license (and requisite non-transfer and end-user certificates) and believe such a decision is suspect on both policy and legal grounds," Reps. Henry J. Hyde, Illinois Republican, and Tom Lantos, California Democrat, stated in the Oct. 10 letter.</p>