Price of U.S. wars: $4.4 trillion?

The final bill for U.S. military involvement in Iraq, Afghanistan and Pakistan could be as high as $4.4 trillion, according to a comprehensive new report Tuesday.

In the 10 years since American troops were sent into Afghanistan, the federal government has already spent between $2.3 trillion and $2.7 trillion, say the authors of the study by Brown University’s Watson Institute for International Studies.

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