We know that there are unaccounted-for Scud and other ballistic missiles in Iraq. And part of the problem is that since 1998 there has been no way to even get minimal information about those programs except through intelligence means.
I spent every night until four in the morning on my dissertation until I came to the point when I could not write another word not even the next letter. I went to bed. Eight o'clock the next morning I was up writing again.