Reading the comments sections of most UK newspapers, it would appear the sheeple are no longer convinced. At least the "send the tanks to heathrow", escapade did have a credible threat of MANPAD in the uk mainland.
BBC NEWS | UK | In pictures: Army patrols Heathrow
Some choice tid bits from Guardian comments:-
"if the devices are undetectable, how will current frisks and swabbing find them?"
"if liquids are possible explosives, why are they not being immediately disposed of, rather than piled up under the scanner next to the passengers?"
Maybe the pax are starting to think for themselves?