Talking Points Memo - Private contractors will make up at least half of the total military workforce in Afghanistan going forward, according to Defense Department officials cited in a new congressional study.

As President Obama's escalation of the war in Afghanistan unfolds, the number of contractors will likely jump by between 16,000 and 56,000, adding up to a total of 120,000-160,000, according to an updated study from the Congressional Research Service.

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