Plane Terror Plot Thwarted  —  Police say they have disrupted a major plot to blow up planes in mid-flight with explosive devices smuggled aboard as hand luggage.  —  Sky News has been told the plan was to hit around a dozen planes over UK and US cities.  —  Police are said to have arrested 20 people …

UK airport delay after plot foiled  —  LONDON (CNN) — Major delays are expected at all UK airports after the nation's threat level was raised to "critical" when police disrupted a plot to blow up planes in mid-flight.  —  The British Home Office on Thursday raised the country's alert level to …

"Imminent," "massive" jihad UK plot foiled; goal: "mass murder on an unimaginable scale"  —  I went to bed last night after blogging about the Dearbornistan terror arrests and the still missing 8 Egyptians.  Twenty minutes after I went to sleep, the news broke about a massive terrorist plot …

Breaking: Scotland Yard busts "major plot" to blow up airplane (Update: A dozen planes?)  —  Just across on CNN International.  —  Al Qaeda, do you think, or our new friends the Shiites?  —  Or maybe the Presbyterians?  —  Standby.  —  Update: Freedom Folks tips me to the news breaking at the Beeb:

'Airlines terror plot' disrupted  —  A terrorist plot to blow up planes in mid-flight from the UK to the US has been disrupted, Scotland Yard has said.  —  It is thought the plan was to detonate explosive devices smuggled on to as many as 10 aircraft in hand luggage.

British Police Thwart Major Terror Plot  —  Britain and the U.S. Raise Security Threat Levels  —  British authorities said today they had disrupted a "major terrorist plot" to blow up passenger flights between the United Kingdom and the United States, prompting a full-scale security clampdown …

UK airports on high alert as terrorist plot uncovered  —  Mark Oliver and agencies  —  A major terror plot to kill hundreds of people by detonating explosives in the cabins of passenger aircraft over the Atlantic Ocean was disrupted overnight, the home secretary, John Reid, said today.

Aircraft Bomb Plot Thwarted in Britain  —  LONDON - British authorities said Thursday that they had thwarted a terrorist plot to blow up multiple airliners traveling between Britain and the United States, creating "mass murder on an unimaginable scale."  —  The police said they had arrested 21 people …

Security chief: Airline terror plot 'close to execution'  —  'We cannot be sure ... plot completely thwarted'  —  WASHINGTON (CNN) — Terrorists were in the final stages of planning to blow up planes heading from the United Kingdom to the United States, U.S. Homeland Security Secretary Michael Chertoff said Thursday.

BRITISH THWART MEGA-TERROR PLOT TO BLOW UP SIX UK-US AIRPLANES  —  SCOTLAND YARD: "PUT SIMPLY, THIS WAS TO BE MASS-MURDER ON AN UNIMAGINABLE SCALE" … Note: this post was live-blogged as information came in.  Not all information below remains accurate at this time.