Moscow police to provide unprecedented security measures at U2 concert

"Some 2,100 policemen and Interior Ministry's troops will be providing security at the Luzhniki Stadium. Officers of the canine team and their dogs will inspect the stadium several hours prior to the concert"

Nanotechnology for clean water: Facts and figures

Nanotechnology could help give millions clean drinking water. David J. Grimshaw outlines the potential, the progress and some of the risks.

iPhone 4 case roundup, the second

Come one, come all, as we reach for a cup of our favourite hot beverage and open up the Macworld magic hat to reveal the latest in protective fashion for your favourite smartphone. Yes, ladies and gentlemen, it's time to follow up our first iPhone 4 case roundup with an updated look at what the market has to offer.

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It is a grim reminder of the cost of war. But for marines based at Camp Lejeune, North Carolina, getting a meat tag - a tattooed copy of their vital information inked into their skin - means paying a visit to Jesse Mays before they head off to war.

'Meat tags'

The tattoo artist inking a final touch on soldiers heading to war