Erick, a Dutch customer, thinks there is no way his government can put the clock back and criminalise cannabis again.

BBC: NEWS | Europe | Dutch cannabis policy challenged

"There is simply no way in a private sector industry that you can sit back and follow a policy which British Airways has been doing for the past several years - flying smaller airplanes, carrying fewer passengers and charging them higher fares, " he said.

BBC: Passengers desert British airlines

"Without phones, we've no way of knowing where exactly they are just now - their aim is to get back to Plymouth any way they can, " he added.

BBC: Sailors race warship HMS Sutherland back to Plymouth

But as I said the other night at my press conference, I'm a big believer in the idea of persistence -- the idea that when the American people put their mind to something and keep at it, without giving up, without turning back, no obstacle can stand in our way, and no dream is beyond our reach.

WHITEHOUSE: Online Town Hall

And, either way, you can go back in and keep tweaking, with no App Store standards or peer review except your own.

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