The Pentagon's independent cost estimator has been directed to assess the implications of the 2019 Missile Defense Review, the Trump administration's new blueprint for defending against ballistic, cruise and hypersonic threats and brief lawmakers in January on the estimated price tag for expanding the Ballistic Missile Defense System. This provision was agreed to by lawmakers finalizing legislation that is now part of the Fiscal Year 2020 National Defense Authorization Act, which also requires the defense secretary in the coming weeks...