Liquid bomb easy to obtain, says expert

SEVERAL different kinds of liquid explosive may have been involved in the terror plot to blow up a number of transatlantic passenger planes, an expert said.

They are not difficult to obtain or make from raw ingredients, and can easily be hidden inside innocent-looking bottles or cans, said explosives technician Dr Sidney Alford.

One of the chemicals, nitromethane, is used as a fuel for model aeroplane engines.