And, btw, that oanda site you posted is absolutely excellent for studying histories on ccy pairs other than those traded in Chicago on CME/IMM.
Frankly, I think (as do my assorted forex gurus) that this imputation that GBP was the 'victim' of a short play by al-Qaida is purely nonsense.
However, in trading, it never pays to disabuse a trader who trades according to an outright delusion -- so, let's let 'em go ahead and sell GBP down another 5-6-8 handles, eh?
/evilgrin
From what I could see the USD has been losing value on a fairly steady basis against the Euro for years. It would take a truly catastrophic attack to have a real impact on the dollar's value relative to other currencies. Too many commodities are ONLY traded in USD, it would take something major to change that.