The warning comes as Whitehall officials admit that a terror strike on the UK is now "almost inevitable" particularly with British jihadis returning from fighting alongside the Islamic State in Iraq and Syria.
An airport security source told the Sunday Express: "We've been told that five planes are being targeted in a high profile hit before Christmas. They've been waiting for the big one.
"We have many scares but this one nearly got hand baggage pulled from all airlines. The threat is still alive and real."
The plot, which has been known about for the past two months, is thought to involve Islamists smuggling bombs on to planes bound for major European destinations before Christmas.
They may ban electronics, including cellphones, from carry-on baggage, if the baggage itself is not outright banned.
And there is talk about sleeper cells, many of whom could be white, blue-eyed, blond-haired converts, and middle-class females.
Dr. Leivesley, a former Home Office risk adviser, said that terrorists are now more likely to be "white, blond and blue eyed" who are radicalized in as little as five weeks.
She also claimed that female terrorists were becoming a significant risk, adding: "Crime profiling shows that white, middle class women, who are better than averagely educated, are susceptible to the terrorist narrative.
"They see themselves at the forefront of attempts to change the world and are represent a very dangerous tool for the terrorists.
Britain should really do something about people like hate-preachers and ISIS sympathizers like Anjem Choudary, or that country is headed for major disasters.
The rest of the story here.