What Are We Willing to Sacrifice in War on ISIS?

This week, Congress took up the president’s request to use military force against the Islamic State. The president’s draft would authorize a wide-ranging effort over three years, but prohibits “enduring” ground operations. It would replace the 2002 authority for military action against Iraq, but leave untouched the sweeping 2001 law, enacted by Congress in the immediate aftermath of the Sept. 11 attacks, to grant President George W. Bush permission to use “all necessary and appropriate force” against nations, organizations, or persons he deemed involved in the planning or carrying out of terrorist attacks.