It won't end. I can't foresee these patterns of gvt expansion ending. What would stop them? As an investor it's smarter to assume the gvt's tendency to "take", as you put it, will simply increase forever because that has been the pattern so far, going back a long time. If you can figure out what they will take next, you can probably invest accordingly and make a profit. Having said that I'm long FNMA but it wouldn't surprise me one bit if the gvt succeeds in shafting shareholders here somehow.