Now that Gen. David Petraeus and [U.S.] Ambassador [to Iraq] Ryan Crocker have made their long-awaited statements to Congress, what should policy-makers and the public take away from the hearings?

Since the surge began, many key population security metrics have improved. General Petraeus opened his testimony by noting recent gains in security since the surge came to full strength early this summer.

... Perhaps the metric that is most compelling is the number of weapons caches found. As of Sept. 7 ... more than 4,400 weapons caches have been found and cleared by Coalition Forces so far this year. This is about 60 percent more than was found in all of 2006.

... Policy-makers should bear in mind that the consequences of withdrawal could be catastrophic for the Iraqis. The purpose of the surge was to provide a level of security sufficient to give the political process “breathing room” to develop. If American forces leave too soon — before the Iraqi Security Forces can adequately assume full security responsibilities — there will be unacceptable costs for the Iraqis.

Read the rest at heritage.org.