Oh Brothers,
I have written it on the same day, Pakistan was on board, they deliberately decided to declare that the operation was a surprise for them. Obama could have never taken this risk. It would have backfired on him badly, if Pakistanis decided to shoot down the copters.
Use of Stealth technology was by purpose to give the excuse of escaping radar detection. Thanks to the inadequacy of Americans who dropped the ball and crashed on stealth, Americans have to brought the two backup Chinooks who were in the area already, otherwise it would have taken them around two hours to fly from Kabul. Chinooks were not stealth and they are noisy birds.
Pakistani leaders purposefully decided to buy humiliations for their nation, it is as plain as this, Zardari is not the only culprit in it, they all are involved.