U.S. Treasury Secretary Janet Yellen recently said the U.S. is not trying to contain China and has called for resuming dialogue with Beijing. The U.S. has also expressed opposition to notion that it is "de-coupling" from China, saying that would be mutually disastrous. What's behind this change of tone from the U.S.? Why is Washington now talking about engagement with Beijing halfway through the Biden administration? If Washington truly seeks reconciliation with Beijing, what does it need to do to repair the seriously damaged relationship?