> Also, the mutant sickly plants will be a good indicator. The plants won't necessarily be sickly in 10,000 years. Tobacco shows substantial resistance to radi

> Also, the mutant sickly plants will be a good indicator. The plants won't necessarily be sickly in 10,000 years. Tobacco shows substantial resistance to radioactivity, especially considering virtually all tobacco contains Po-210. It also survives with isotopes of Plutonium, Polonium 209 and Americanium... amongst many other radioactive elements it can pick up and thrive despite.