The expense of protecting against potential losses from U.S. government debt increased recently, showing that investors are feeling uneasy. Data from S&P Global Market Intelligence revealed that the spreads on U.S. six-month credit default swaps (CDS) widened to 70 basis points on Friday, up from 65 bps on the previous day. This suggests a growing concern about the risk of default. The information was reported by Davide Barbuscia.