On Wednesday, ProPublica and NPR's Planet Money announced an ongoing investigation into the inner workings of Wall Street during the boom years.

ProPublica's Jake Bernstein and Jesse Eisinger rang the investigation's opening bell with Planet Money editor Alex Blumberg and correspondent Chana Joffe-Walt. They noted that the SEC is only now seeking key information about the players behind the meltdown.  Get all the details – and some handy translations of financial acronyms – by listening to the show's podcast.  Bernstein and Eisinger also appeared on All Things Considered.