Devices with large storage capabilities—most notably those with a Universal Serial Bus (or USB) plug used to connect to a computer—have been treated with greater suspicion of late by government agencies and corporations alike.”
Update: The British Ministry of Defense has denied to the BBC (British Broadcasting Corporation) that the military has imposed an outright ban on iPods or portable storage devices in general. A spokesman clarified that only specific secure areas are or will be deemed off-limits to such devices, and that the iPod was not specifically targeted by the government.