Recently, BP agreed to become a convicted felon by accepting a deal with the US Justice Department. It will plead guilty to 11 felony counts of "seaman's manslaughter" and one felony count of obstructing Congress related to the offshore Deepwater Horizon oil rig explosion that killed 11 workers and caused the huge oil spill in the Gulf of Mexico in early 2010.
Similar to how most citizens lose their right to vote after felony convictions and often cannot donate to campaigns, BP and other corporations should be prevented from donating to campaigns, PACs and SuperPACs despite the Citizen United ruling.