After the recent fiasco known as the "HRC FBI Investigation", there is no way in hell you can get me to agree to handing more power to the FBI.
If anything, handing any more power to any federal agency is a disqualifier.
I apologize for taking only 15 seconds to peruse the highlights of Rubio's proposal, but I know a federal power grab when I see one.
I can only imagine the outcry if a similar bill was targeted at "irresponsible exercises of the First Amendment", making it easier to sue news organizations for slander or libel, or allowing law enforcement agencies to crack down on nonprofit organizations for "hate speech."