Tension between Kabul and Washington continues to build as Afghan President Hamid Karzai delays signing a security pact with the United States. Washington issues a new warning, while Karzai sets new conditions for the deal. The US says it will pull all troops out of Afghanistan if Karzai does not promptly sign the agreement. The warning came during a meeting between Karzai and U-S National Security Advisor Susan Rice. Washington has repeatedly said that it cannot wait until after the April election, with Rice now calling it quote-not viable. However, Karzai has said that he will not back down from his refusal to sign the pact and will leave the decision to his successor. He has asked the US for a guarantee that it will halt all military operations targeting civilian homes. Karzai\'s spokesman says he has also called for a clear commitment to starting the peace process before the crucial security pact is signed. Show Less >>