cfr.org/articles/why-u-s-borrowing-costs-keep-climbing-despite-treasurys-efforts Why U.S. Borrowing Costs Keep Climbing Despite Treasury’s Efforts
30-year Treasury yields hit a nineteen-year high of 5.36 percent, and Washington's countermoves are backfiring. Japan's yen intervention apparently drained Treasuries instead of sparing them, and a $5.2 billion buyback barely dented 0.016 percent of the market before rates climbed right back.
— via CFR (Council on Foreign Relations)