He said so much information was coming in to the operators it was unclear how widespread the fire was and where the dangers lay.

BBC: Lakanal House fire: Victim's desperate 999 call

That's roiled the credit markets and it's still unclear just how widespread the problems are.

NPR: Housing Market Problems Lead to Job Cuts

Meanwhile, Medicare has covered the CT scans since 2006, and the tests are in widespread use, even though their usefulness for patients is unclear.

CNN: Newer heart test may not be better