the setup: US markets down ~ 2+/-% (Europe ~ -2.6%), POMO today less than $2 billion in long bonds., thin holiday trade (going to get thinner later this afternoon), what happens if the mkt holds near the lows or continues to slide nearer the close, will the 'machines' get turned off early? hmmmmm   if I recall, last time we were down 300+ plus this time of day .....  nah, couldn't happen....????? but ya never know....