imaging? when they go for what kinds of test would this be relevant or would this be used? >> like i said, there are 40 mill procedures a year. and many are specific for certain orghans your body whether it's the heart, thyroid, muscular diseases or bones. and these isotopes -- many of them are man made. and they are very specific for the task at hand. and they save lives. i can't overemphasize that. they are so much better than the old traditional x-rays. our pet scans, ct scans, there are so many of these different types of tests that advance the medical field that are saving american lives. so we can't be dependent upon other nations to give us these