It is very important because this test was done. I have it right here from Defence Canada. In fact Canadian Forces health services were part of this. They tested with Los Alamos labs. Los Alamos labs is the leading uranium researcher in the States, and they're the ones that provided the spiked control group urine samples to be tested. The results were that the labs could not accurately measure depleted uranium in the samples provided to them by Los Alamos labs.
As to why I wasn't tested, when I found this out, I saw no point. I was going to get a result saying that I don't have depleted uranium in my urine when in fact they didn't have the equipment to test it.