A new law says that outer-space passengers have to surrender any clear-glass reflective items for inspection.

A high-grade mirror at an extrastratospheric facility could help a sophisticated team of combatants burn a lipstick-sized hole into any of a wide range of Earth- or space-based targets.

Any mirror is potentially a high-grade optical component suitable for a weapon system. Any amateur with a vacuum-tolerant suit, proper instructions, and out-of-craft access could attach a basic radio-controlled aiming device to the exterior of a space installation — at which point anybody with a big sharp well-aimed Earth-based laser could shoot a hole into anything within view.