HOW RADIOACTIVE???

I just read a helpful article on Cesium 137-since it (C) figured heavily in my last post; and, of course, it's been found in Mountain Creek Lake. C 137 is a water soluble radionuclide that is a waste product from a nuclear reactor or the product of a nuclear explosion. It's a highly controlled, incredibly expensive substance that today could be sought by terrorists for dirty bombs.
I am not a scientist, and I only know what I read from reasonably trusted sources, but this is the information I've acquired:
In the environment, Cesium 137 is still quite dangerous, though Americans are usually told that C137 from the 1960s weapons testing has degraded by at least one-fourth and is nothing to worry about. Some fear that C137 was not adequately studied in the past, with the government hoping for degradation and trusting that most of us who were exposed during the Cold War would remain uninformed and die off quietly as time went on!
Yet, a half billion people worldwide are believed to have or have had cancers from C137. Recent scientific research shows that great care needs to be taken with this product, which can still be found in soil, water, food, milk, old industrial/aircraft instruments. It's often mixed in with metals in landfills, in scrap metal yards, etc.
EPA is undoubtably reluctant to disturb this radionuclide in the water and sediment of Mountain Creek Lake; however, the public should be able to find out what procedures-no doubt expensive-could clean the lake safely. Transparency and discussion are pressing needs in our community, especially in light of the significant cancer risk from Cesium 137, which is - all things considered - a very strong form of radiation. I urge you to study this situation for yourself, learn the science, and speak out. Decide how much radioactivity you-as a citizen-are comfortable with; and look at the overall condition of the lake, not just the C 137.

One last thought: If C137 really is water soluable and as dangerous as claimed, why is no fence around MCL to completely prevent fishing? As I've said in earlier posts, fishing is definitely going on-if it's daylight or evening in Dallas-right this minute! Don't want to pay for a fence? Let's get the Navy to use the resources of our government-scientists, equipment, manpower-to clean up this lake! I strongly suspect we're already paying for most everything that would be needed.