content: While true, Congress usually abdicates their responsibility by allowing the FCC to create appropriate regulatory rules to implement things they do pass.  So Congress passes a law that says "make cable cheaper" with a section that gives the FCC the power to make new rules to implement that.  Later some FCC weenie decides that they should have a rule saying cable has to be $20 a month without lowering the number of channels.  Courts seem to allow this to happen without much pushback and Congress is happy to not have to actually do anything.