Investors continued to pour money into the Treasury market’s shortest-dated security on Friday amid ongoing worry over the U.S. debt ceiling and the possibility that the government might default on its debts.Those worries came to the fore this week as investors sought out the safest place to hide: the 1-month Treasury bill BX:TMUBMUSD01M. Enormous demand for the bill sent its yield into a steep dive on Thursday, falling by more than half a percentage point at one point to 3.215% before paring the drop, according to Tradeweb. On Friday, the rate settled at 3.348% as of 3 p.m. Eastern time — down 18.3 basis points from…