The Fed and ECB are concerned, but most regulators say a repeat of 2008 is unlikely.
A Hong Kong tycoon is going after the salesman who persuaded him to entrust a chunk of his fortune to a supercomputer.
The banker was told that he was "old" and set in his ways.
The total of leveraged loans and high-yield bonds outstanding in Europe and the U.S. has doubled since 2007.