There is generally some truth behind most myths, and most conspiracies. How much of it is just happenstance is debatable .
As far as the Bilderbergs, I will ask you what family that has become wealthy at any point in history, here or anywhere else, has not tried to increase wealth, standing, power, and influence. Some have gone to great extremes, some have not.
9/11 is bull, it was terrorism plain and simple. Chemtrails are bull. FEMA camps and things , some things associated, I believe. How sinister they are is debatable. They could be used now for benign uses, like natural disasters, man made disasters on a large scale. Some administration in the future, however, or even this one, might be tempted to use them for what they deem domestic terrorists, just as Cass Sunstein and some others have said, and are on tape saying it.
JFK was not killed by a lone gunman. I know three people that were there, in official capacity, as CIA, and FBI agents. One right with the president, the other just behind him, and one other one a few hundred feet away.
MLK was indeed killed by the government, and as a martyr by those within his own movement to further the cause. Most people don't realize he strike was over, and he was going home, to later move to preach at and head the giant church in Chicago. The movement was dying out. It would have maintained some of the gains it made, but that's it. MLK's assassination brought together people that would have never been allies in the movement. It needed a martyr to succeed.