Radio 4 in Four - Are all airline safety restrictions here to stay? - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - Are all airline safety restrictions here to stay? - ÃÛÑ¿´«Ã½ Sounds
Are all airline safety restrictions here to stay?
No liquids and gels over 100ml or removing your shoes were initially temporary measures.