https://www.marketwatch.com/story/sen-elizabeth-warren-says-warning-light-are-flashing-cautions-that-odds-of-another-economic-downturn-are-high-2019-07-22   Warren described the debt this way in her Medium blog: “These high-risk loans now make up a quarter of all American business loans, and they look a lot like the pre-2008 subprime mortgages: poorly-underwritten loans with minimal protections that are then packaged and sold to investors.”