Amsterdam airport boosts security

Amsterdam's Schiphol Airport - the departure site for the alleged Detroit underwear bomber - tightened security yesterday after journalists orchestrated a sting operation that smuggled bottles of liquids on to planes bound for London and Washington.

Security at Schiphol has been under scrutiny since Umar Farouk Abdulmutallab, a Nigerian student, flew from the airport to Detroit on Christmas Day with explosives in his underwear.

In an undercover operation broadcast on television, reporters refilled bottles bought at a duty free store, resealed them and smuggled them back into the store. They then went through the check-out counter again with the same bottles, where they were put into sealed plastic bags that were not checked by security staff.