Lighters and matches are now banned in airline cabins, but passengers on British aircraft will be able to eat a meal with metal cutlery and to take knitting needles and scissors with blades less than 3 centimetres, or 1.2 inches, long in hand baggage. Longer blades, corkscrews, and penknives will still not be allowed, according to the British Department of Transport. “Airline security is an issue under constant review,” a spokesman says. “There are now enough security measures in place to allow passengers to bring these items back on to planes.”