Mr. Chair, Cobalt-60 has a much longer half-life. Therefore when we make the Cobalt-60, it stays around for several years. Therefore, we have a good supply of cobalt. Cobalt is a wonderful material as was mentioned. It can sterilize food. It can sterilize medical supplies. It can provide cancer therapy. One of the most exciting new applications of this is what is called the gamma knife, so it is knifeless surgery.
It is an important product, but it has a long half-life, so being down for a while does not affect the supply.