The US Department of Justice is investigating a piece of software that it alleges helps landlords share private information and suggests rent increases accordingly. The DoJ says this amounts to digital price fixing, with rents routinely rising by more than expected where the software is used. And it's happening in Canada, too. A recent affidavit revealed one corporate landlord admitting to the practice, and the app's use is likely far more widespread, leading to increases that blow away previous highs. Is this legal? Should it be? How does algorithmic pricing work on your rent? And what else will it work on next? GUEST: Martin Lukacs, managing editor at The Breach