Great idea OR disaster waiting to happen?

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How about a way to get all the electricty we can use without drilling, using our food sources to make fuel, or polluting our planet and endangering the environment? And, with a cost that is no more than what we are currently paying for electricity 8 - 10 cents per kilowatt-hour. Plus, we already have the technology needed. So, it is not something that needs to be developed. O. Glenn Smith, a former manager of science and applications experiments for the International Space Station at NASA’s Johnson Space Center, is proposing that we collect solar energy in space and then beam it back to earth for use. Here is a link to his proposal - http://www.nytimes.com/2008/07/23/opinion/23smith.html?th&emc=th It sounds good; but, there are a few things he is not addressing that need to be addressed. We all know that too much sun can cause burns and cancer; and, excessive radiation of any type can cause a wide range of health problems. So, when the article says: "this solar energy would be safely beamed to Earth via wireless radio transmission" - the word "SAFELY" actually has me questioning this person's sanity. While a wireless radio transmission can be sent safely back to earth; this is not talking about sending a short occasional message. This is talking about a sustained high powered transmission; broadcast across the earth. While a special receiver can absorb and transform the signal into electrity, the signal will not JUST go directly to these antennas. It will cover the world and irradiate everyone and everything on the surface of the planet 24/7 - 365 days a year. NO ONE has EVER studied such transmissions on this type of a scale, not even on mice and rats. We have NO idea what type of damage it could or would cause. We do know that "wireless radio transmissions" are being implicated in cancer and other cellular damage to humans when they are only exposed to them periodicaly on a daily basis (cell phones, high voltage lines, etc.). And, what about people who rely on electronics to live - people with pacemakers, etc. How would these transmissions affect them? An unshielded microwave and other devices that emit transmissions can cause pacemakes to malfuntion. Standing in front of a high power radio transmitter WILL cause temporary and/or permanent sterility. "Wireless radio transmissions" powerful enough to provide electricity to the ENTIRE planet; just might, be enough to sterilize every living thing on the surface of the planet. And, we're worried about little things like nuclear reactors and oil wells. What do you think about this energy "solution"?