He invented and patented a series of combination locks with lead balls to block x-rays, in conjunction with special nylon wheels to prevent them from observed.

FORBES: A Former KGB Covert Entry Expert Speaks

But Dennis Henigan, legal director of the Centre to Prevent Handgun Violence, replies that gun manufacturers already have access to low-tech safety devices, such as combination locks.

ECONOMIST: Anti-gun lawsuits (2)

The thieves, headed by Leonardo Notarbartolo, reportedly managed to penetrate some of the most advanced security measures, including hi-tech combination locks, motion and heat sensors -- and 18-inch steel doors.

CNN: SHARE THIS