by Declan McCullagh. This week's leak - still incomplete - of some 250,000 State Department dispatches follows WikiLeaks' April release of hundreds of thousands of classified military dispatches from Afghanistan and Iraq. These documents add up to a massive store of sensitive U.S. information totaling around 725,000 files and amounting to what Der Spiegel is calling "nothing short of a political meltdown for U.S. foreign policy." And, according to chat logs made public earlier this year, they all came from one source: Bradley Manning, an Army intelligence specialist whose successful efforts to liberate data went completely undetected by authorities. The possibility that a lowly Army private could have access to such a dizzying volume of classified files, and manage to spirit it away under the noses of his superiors has left official Washington scrambling for explanations.