The alert level has been raised to the top level in the UK.
http://news.google.com/nwshp?hl=en&tab=wn&ncl=http://news.independent.co.uk/uk/crime/article1218129.ece&scoring=d
http://www.canadaeast.com/cp/world/article.php?articleID=30834
"British police thwart terrorist plot to blow up commercial aircraft"
LONDON (AP) - ARTICLE SNIPPET: "Police have arrested a number of people in London after a major covert counter-terrorist operation lasting several months, police said in a statement."