1. The Supreme Court just opened itself up to congressional demands for the individual justices' tax returns.
2. I can see a situation in which the House or the Senate decides that it must have access to all of the justices' tax and financial records each year to determine if they're influences in any way to write the decisions they write or vote the way they vote on numerous cases.
3. The justices will not be able to argue that they are immune as a matter of separation of powers as they just shot down that argument as applies to the president.