Afghan official: Pakistan spies behind Kabul attack - CNN.com

Pakistan has never been a US ally. Like Saudi Arabia, Pakistan plays both sides against the middle.
CNN

An Afghan government official said Monday's suicide car bombing outside the Indian Embassy in Afghanistan has "the hallmarks of the Pakistani intelligence."
The official, who did not want to be named, said the investigation into the Kabul bombing that killed more than 40 people is still under way, but "all indications are" that Pakistan's intelligence service is behind the attack.
Humayun Hamidzada, a spokesman for Afghan President Hamid Karzai, would only say that the "sophistication of this attack and the kind of material that was used, the specific targeting ... has the hallmarks of a particular agency that has conducted similar attacks inside Afghanistan."