I don't think so, as I explained in the very next post following the one you read, I think the senior aide was referring to GW's re-election situation and not the actual code alert.
Suitcase sparks town terror alert (United Kingdom)
STANDSTILL: suspicious package forces police to seal off bank
AN ABANDONED suitcase brought Reading town centre to a standstill yesterday.(snip)
http://www.getreading.co.uk/story.asp?intid=9580
Well I just heard we become inure to warnings, so they try not to give them, but I'm certain it will be going up soon with the FBI alert and warnings on FNC all day, discussing PA railyard right now, anon threat and found objects that they never find, whatever that is
People rethink travelling via trains and subways