Doomsday Machines: HAARP

From wikipedia:

The High Frequency Active Auroral Research Program (HAARP) is an ionosphericresearch program jointly funded by the US Air Force, the US Navy, the University of Alaska and the Defense Advanced Research Projects Agency (DARPA). Its purpose is to analyze the ionosphere and investigate the potential for developing ionospheric enhancement technology for radio communications and surveillance purposes (such as missile detection)

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HAARP is the subject of numerous conspiracy theories, with individuals ascribing various hidden motives and capabilities to the project. Journalist Sharon Weinberger called HAARP "the Moby Dick of conspiracy theories" and said the popularity of conspiracy theories often overshadows the benefits HAARP may provide to the scientific community. Skeptic computer scientist David Naiditch called HAARP "a magnet for conspiracy theorists", saying the project has been blamed for triggering catastrophes such as floods, droughts, hurricanes,thunderstorms, and devastating earthquakes in Afghanistan and the Philippines aimed to "shake up" terrorists. Naiditch says HAARP has been blamed for diverse events including major power outages, the downing of TWA Flight 800, Gulf War Syndrome and Chronic Fatigue Syndrome, as well as the Columbine High School shootings. Conspiracy theorists have also suggested links between HAARP and the work of Nikola Tesla(particularly potential combinations of HAARP energy with Tesla's work on pneumatic small-scale earthquake generation) and physicist Bernard Eastlund. According to Naiditch, HAARP is an attractive target for conspiracy theorists because "its purpose seems deeply mysterious to the scientifically uninformed".
Conspiracy theorists have also raised the possibility that HAARP may have played a role in the devastating, highly damaging earthquakes that occurred in Sichuan, China in 2008, and Haiti and Chile in 2010. An opinion piece on a Venezuelan state-run television channel's website blamed HAARP as a cause of the 2010 Haiti earthquake.