alternatively, they could simply not redeem Tether for USD (which they don't), and then you'd have to hope that any exchanged with USD x USDT trading pairs has enough demand/liquidity to keep the peg.
and of the $2B they're supposed to have, the depth on the kraken order book is barely $6M... and that would drop the price of USDT to $0.30
RE: Why Tether’s latest statement about its auditor is complete BS