The recent decision in United States v Comstock that the federal government has the power to imprison persons convicted of predatory sexual offenses after their sentences are served is getting scathing reviews among conservative constitutional scholars. A constitutional scholar in the other camp, Prof. Charles Fried of Harvard Law School, explains why he believes the federal health insurance mandate is constitutional in this Boston Globe op-ed piece, with specific reference to Comstock. His piece is critiqued here by Ilya Somin, at Volokh Conspiracy.