A method for tracking and handling people and articles at an airport using Radio-Frequency Identification tags. The polymer composition comprises a first ethylene-\u03b1-olefin copolymer and a second ethylene-\u03b1-olefin copolymer. Mmn+Rrp+AlExSiyOz where M is an alkali, alkaline earth, or rare earth metal such as lithium, potassium and barium, R is an organoammonium cation such as the choline or the diethyldimethylammonium cation and E is a framework element such as gallium.