Was 911 a conspiracy?
I am not a big fan of conspiracies but 911 Cover Up.gvi certainly makes me wonder.
If your system can't play the video get the "Google Video Player"

You hear a lot of conspiracy talk about suppression of things like the 100MPG carburetor and what not.  However if you look at the weight of a car, especially one with say a V8 in it, the wind resistance and... the actual energy required to make an old V8 car go 100 miles?  There is just not enough energy in 1 gallon of gas to do that.

What about the conspiracies to cover up technologies that could free us from oil?

Let's take a look at "Cold Fusion".  Cold Fusion is a very misleading name, and as defined by the Low Energy Nuclear Reaction (LENR) community - Deuterium Deuterium fusion, cannot be explained in a metallic lattice.  If the physics of a process is not understood or explainable, and the phenomenon is not easily reproduced, then it is almost impossible to make it useful.  It did not help that Fleischmann and Pons were pushed in front of the news media in an attempt to grab a portion of the federal dollars funding fusion research at places like MIT.  I personally know several people who had the projects they were working on threatened with termination of funding if cold fusion was real.  Cold fusion does not involve "big science" requiring tens-of-millions of dollars.  The people working on projects that were about to millions of dollars in funding were asked if cold fusion was real. Talk about conflicted interests.  Did you know that the researcher who took the data used to kill cold fusion resigned from MIT, sued them and won.  The graph they used to kill cold fusion looked much like the data he had submitted for the report, except they shifted the data down to make it look like nothing was there. 

Following is both a quote and link to the document it came from.
"the story of cold fusion’s reception at MIT is a story of egregious scientific fraud and the coverup of scientific fraud and other misconduct—not by Fleischmann and Pons, as is occasionally alleged—but by researchers who in 1989 aimed to dismiss cold fusion as quickly as possible and who have received hundreds of millions of DOE research dollars since then for their hot fusionresearch."

Well I came up with a hypothesis for the physics that allows "Cold Fusion" to work.  I am an electronics design engineer with background in switching power, analog design, sensor design, sensor interface, control systems, and system design.  Getting a degree in Electronics Design teaches you to a lot of physics and physical sciences in general.  With a hypothesis of the underlying physics, I decided to build a circuit to test this hypothesis.  Next, I convinced Townsend and Townsend and Crew, an intellectual property law firm with two attorneys holding PhDs in high-energy physics, to work with me in exchange for stock and future licensing fees in Profusion Energy.  They have now filed two patent applications for Profusion Energy.  I have designed control systems and built them out of my own pocket.  These control systems provide qualitative evidence of fusion energy production in open containers but not quantitative evidence.  This will require significantly more money for a lab and pressurized reactor vessel calorimeters.  Considering what the result of this investment is expected to be, hard evidence of useful fusion energy, two MILLION dollars is NOT a lot of money.  There is no conspiracy against us, we are simply being ignored to death.  How can you help?