UFO OVER CHICAGO?

an old friend of mine has allegedly been in contact with alien beings countless times throughout his life, and he is now writing about it; apparently the US - and perhaps some other nations as well - have spacecraft based upon back-engineered UFO technology called the 'CAW-50' - there are anywhere from 20 to 50 of these 'super-secret' craft in existence and they are being used to protect US airspace - some UFO sightings are truly extraterrestrial, but others are clearly not - don't believe it? why would a professor emeritus at stanford university lie? - click on these links: http://homepage.mac.com/davkobza/Menu24.html & http://myspace.com/celestialmind