From yesterday's Wall Street Journal:
Federal Reserve and Treasury officials are scrambling to prevent the commercial-real-estate sector from delivering a roundhouse punch to the U.S. economy just as it struggles to get up off the mat. Their efforts could be undermined by a surge in foreclosures of commercial property carrying mortgages that were packaged and sold by Wall Street as bonds. Similar mortgage-backed securities created out of home loans played a big role in undoing that sector and triggering the global economic recession. Now the $700 billion of commercial-mortgage-backed securities outstanding are being tested for the first time by a massive downturn, and the outcome so far hasn't been pretty.