Strategic defaulters, beware. The feds are coming for you. And they are not happy. Not the FBI. The Office of the Inspector General at the Federal Housing Finance Agency. The OIG may not have the same fearsome "G-man" reputation as its better-known counterparts at the Federal Bureau of Investigation, but it is every bit as much a law enforcement agency, with the same powers to search, seize and arrest. Special OIG agents are even authorized to carry firearms. The OIG's mission is to seek administrative sanctions, civil recoveries and criminal prosecutions against anyone who abuses the FHFA's programs. And it...