Editor’s Note: Doug Kass spied looming subprime troubles early on and has been tracking the issue for TheStreet.com for months. We have gathered his work on the topic here. Four to Blame for the Subprime Mess 3/14/2007 10:38 AM EDT Greenspan is No. 1. Plus, Kass is actually buying stocks now.   More Subprime's Siren Call 3/12/2007 12:39 PM EDT The collapse in this sector will have far-reaching impact.   More Subprime's Next Victims: Hedge Funds 3/5/2007 1:08 PM EST They stand to lose as the leveraged funds of funds unwind.   More Finding the Next Shoe to Drop 3/2/2007 12:32 PM EST Securitization-market risks are the stuff that capital market crashes are made of.   More Short Side Never Looked So Good 3/1/2007 4:38 PM EST Some reasons why today's drop is just the start.   More Ratings Are Subprime's Dirty Secret 2/9/2007 11:25 AM EST Credit will contract as subprime downgrades expand.   More Subpar Subprime a Growing Problem 2/8/2007 11:56 AM EST The economic risks are numerous for these lenders.   More Housing Headed to the Woodshed 9/29/2006 10:14 AM EDT It won't be morning in America when the economy wakes up to this.   More