President Bush, 5/10/07:
The level of sectarian violence is an important indicator of whether or not the strategy that we have implemented is working. Since our operation began, the number of sectarian murders has dropped substantially.
Q: Mr. President, are you surprised by reports today from the Iraqis that sectarian killings are actually on the rise to pre- troop surge levels? [...]
BUSH: Yes, I’m — there’s — certainly there’s been an uptick in violence. It’s a snapshot. It’s a moment.
UPDATE: Actually, as this Washington Post graphic shows, sectarian killings are actually getting worse.