As well as their path, their forward motion, intensity and wind speed are all very difficult to predict, NOAA notes.

BBC: What will a hurricane do to the oil spill?

The SNP motion accuses Tony Blair of pursuing "an inevitable path to war".

BBC: Liddell raises UN doubt over Iraq

Went the Day Well (20-1) has some long odds, but he followed the same path to the Kentucky Derby that trainer Graham Motion set for last year's winner Animal Kingdom: Went the Day Well and Animal Kingdom both won their last prep race, the Spiral Stakes.

WSJ: Kentucky Derby: How to Eliminate 19 Horses

King Hussein set political liberalisation in motion but he has now, claim many Jordanians, become the main obstacle in its path.

ECONOMIST: How indispensable is King Hussein?