What happened in Abbottabad?

America's military assignment in Abottabad, which killed Osama Bin Laden code-named Operation Neptune Spear, leaves too many a question unanswered. America unilaterally designed and executed the operation, which left Pakistan in an embarrassing position. Here are a few questions.

• Is Pakistan, which is one of the few nuclear powers of the world, so incompetent? Neither did its intelligence agencies figure out the whole operation(or did they?) nor did the state detect foreign helicopters enter its boundaries and carry out a military operation so close to its nerve centre.
• Osama Bin Laden very successfully hid himself 9 years in Pakistan. Accurately, his den was outside Kakul military academy, only 68 miles away from capital Islamabad. ('The den' was actually a palace like building.)Abottabad is a place so exposed that a man so important as Osama cannot be expected to live in complete anonymity. This naturally brings the following suspicions.
• One of the hypotheses is that Pakistan may have protected him for 9 years and then, because of insecurity or some dissension, Pakistan might have betrayed him. This means that America might have got invisible support from Pakistan. If Pakistan openly took part in the operation, Islamic forces  would have wreaked havoc in the country. Pakistan is recognized as a safe haven for international terrorists.
• Pakistan initially lauded the operation, soon the real sentiments came out from the skin. Pakistan people in general felt outraged by the action of America. More than the humiliation of finding a wanted terrorist in its own backyard, what resented them was the so called 'back-stabbing' action by USA. Pakistan has till now took a stand of denial in the case of Abbottabad, and has never shown the mind to address serious questions regarding Pakistan turning to a global jihad centre. Many Pakistanis believe that the death of Laden was 'a bad thing'.
• Another explanation is that Pakistan is displaying much public indignation to avoid other countries (yes, India) and probably America emulating the May 2 operation in future.