Security experts worry about hand sanitizers on aircraft

Hyderabad: Back in 1987, a liquor bottle filled with explosives and placed in a carry-on bag in an overhead bin helped terrorists crash a South Korean airliner. All 115 on board died.

Then, in 1994, Al-Qaeda member Ramzi Yousef, architect of the first World Trade Center bombing, detonated liquid nitroglycerin that he had taken on board a Philippine Airlines flight in contact lens solution bottles. One passenger was killed and several were injured in the incident.