In the conspiracy genre, Al-Quaeda is often referred to as a "created" entity - created by the CIA.
But that's simplistic. Radical Islam started as a the Muslim Brotherhood in Egypt with the disintegration of the Ottoman empire after WW I
when Egypt was still a British protectorate 1928). And with further Western involvement as the result of World War II, , the creation of Israel and the mess in Palestine, the toppling of Mossadegh in Iran and the subsequent rebellion against the Shah followed by the reign of the Ayatollahs there, the incredible wealth generated by enormous petroleum deposits in the Middle East and the "special relationship" between Saudi Arabia and the US (including the petro-dollar system) - all these things have served to bolster Islamic Militancy as a counter to Western interference and involvement in the Middle East.
The phenomenon of Radical Islamism was actually co-opted by the Western interests (CIA) back in the 80's to use against the Soviets in Afghanistan, even though Islamic militants are enemies of the West. And ever since the US has begun to USE Islamic Militancy as a "hide" in a larger chess game of regional and energy geo-politics, the importance and cache of Radical Islam has soared.
A loose organization such as Al-Quaeda or Radical Islam or the Muslim Brotherhood or whatever you want to call it, is a bonanza of opportunity for intelligence agencies. It is not difficult for sophisticated operations to infiltrate and influence a social phenomenon like Radical Islam - as long as you realize the blowback is always a possibility. If you can engineer events and manipulate people within Radical Islam, you can accomplish political, social and regional objectives through it.
Back a few years ago, did the Bush Administration actually believe that it could combat Radical Islam with conventional military forces? Of course not! If you really wanted to combat Islamic Militants, you would use cooperating police forces, intelligence forces and paramilitary forces to strangle their operations. Instead, the Bush Administration USED the phenomenon of Al-Quaeda and Radical Islam as an excuse to accomplish their objective of injecting conventional military forces into Iraq.
Iraq is the last huge cheap oil province on the planet. It was certainly worth all the bother of suffering a little "blowback" or a little sacrifice.
To bring up a famous example, it would have been great if the US government's investigating agencies had determined the truth behind several well-documented international news reports that Mohammed Atta had received a $100,000 wire transfer from Pakistan's ISI shortly before 911. It would have been great if investigating agencies had looked into why Pakistan's Chief Spy General Mahmoud Ahmad, the alleged "money-man" behind the 9-11 hijackers, was at a breakfast meeting on Capitol Hill hosted by Senator Bob Graham and Rep. Porter Goss, the chairmen of the Senate and House Intelligence committees.
But the hottest topic in the world, who funded 911, soon disappeared as if it had never existed. The news about the Pakistani ISI involvement escaped the light of the media, and with the idea that the funding was linked to Osama Bin Laden firmly planted into the mind of the public, the push for war in Afghanistan began. Years later, the 911 Commission Report even said, "who funded the attacks is of little practical significance."
So what's this have to do with Benazir Bhutto's assassination?
It means that a lot of people see an event like this now and wonder, "Is it a real event or a staged event with a purpose behind it?"
And it's not possible to know. But it's interesting to watch the effect that the assassination has on US politics. And it's interesting to sit up and pay attention to what happens next in Pakistan and how this effects the current US situation in Iraq.