Have a look at this, called Engineering [sic] a safer burger. http://www.washingtonpost.com/wp-dyn/content/article/2008/06/11/AR2008061103656.html?hpid=sec-business What will be available to eat when the US population reaches 500 million? Fortunately, I will be long gone by then. I won't even live to see what happens when petroleum is largely unavailable, in maybe 50 yrs, and that won't be pretty either, considering we have designed and built the place on the assumption of cheap energy. Jim