From The L.A. Times:
The offensive against militants in the Swat Valley, as well as Pakistanis' growing support for the campaign, gives U.S. officials reason to believe Islamabad can turn the tide against extremists.
Reporting from Washington -- Pakistan's military offensive against the Taliban has slowed the flow of arms and fighters into Afghanistan, U.S. officials say, and has prompted intelligence analysts to issue cautiously upbeat new assessments of Islamabad's ability to contain the threat of violent extremists.
Read more ....
Update: Pakistan Army's challenge: holding onto gains against militants -- Christian Science Monitor
My Comment: The main safe havens in Pakistan for the Taliban have not been touched yet. If they are attacked by the Pakistani military .... that is when we can say that a dent against the enemy is now in progress.