ultimately defeat U.S. efforts in Afghanistan.

Greg Jaffe and Greg Miller at The Washington Post report that the cable written by Ryan C. Crocker spells out that U.S. efforts to to weaken the Haqqani insurgents are failing, and the Taliban allies may be the final undoing of U.S. strategy.

Because of the memos high level of secrecy it was sent through Central Intelligence channels, and no mention is made of how Jaffe and Miller came to have a copy, or from where it was received.