New rule: if your for-profit company is "too big to fail", you get nationalised, not bailed out.

@jasongorman More importantly, at nationalisation the previous shareholders should receive their share of the company's worth - assets minus debts - so normally $0

Shareholders must have an incentive to make sure the company is well run.

@EI3JDB Yep. Nationalisation should be an intervention when bankruptcy is inevitable but the consequences of folding would be very serious for that country.