The Financial Post reports in its Friday, June 13, edition that America's debt burden and interest expenses are becoming "untenable," leading some investors to move away from dollar-based assets, according to Doubleline Capital's Jeffrey Gundlach. A Bloomberg dispatch to the Post reports that Mr. Gundlach says the long-term Treasury bond is losing its status as a safe haven. Mr. Gundlach suggests investors consider increasing non-dollar-based holdings. He says his firm plans to introduce foreign currencies into its funds. His remarks came ahead of the 30-year Treasury bond auction. Mr. Gundlach compares today's market to 1999 before the dot-com bust and to 2006-2007 before the financial crisis. He suggests the booming private credit sector resembles the mid-2000s collateralized debt obligations market, marked by high issuance and acceptance. Mr. Gundlach gave the Federal Reserve an F grade in September for its response to the economy as he correctly predicted a half-point rate cut, and earlier this year his firm posed an open question of whether Microsoft debt was safer than Treasuries. As for Treasury debt, Mr. Gundlach says yields on long-term bonds could continue to rise as the economy starts to weaken.