Why did the Clinton Administration continue to liberalize export controls on sensitive technologies even after it learned that China had stolen designs?

Why did the Clinton Administration wait from 1995 to 1998 to tighten security and bolster counterintelligence at U.S. weapons labs?

The committee discloses that even after the U.S. government learned of the diversion of U.S. designs for nuclear warheads in late 1995, the Clinton Administration failed to take steps immediately to improve security.

I worked in the Clinton administration.

But the technology was accessible, which suggests incompetence on the part of our counterintelligence community and the Clinton Administration, and may in fact rise to the level of treason.

Is this administration, the Clinton administration, an administration that needed defending?