Spare a thought for the captain of the 'Abraham Lincoln' (and any other USN or RAN ship) off Sumatra. Whilst asking 110% of their crews in providing much-needed aid to the poor sods ashore who were affected by the tsunami, I'm sure they have to have some crew on full alert 24 hours a day to ensure that some of Osama's "lads" don't try to pull a "USS Cole" on them.