It is probably more important that data is held in open data formats, or formats that can be interpreted by multiply sourced open source code. There's no point opening government data if you don't control the data format license or the license of the code that reads the data. Government data should not be put into proprietary data formats.

Possibly my No. 1 as well. We need a rock solid consumer Fair Use rights, maybe everyone should get a non-commercial, derivatives allowed right to use digital content, may be it needs to be put in the context of a "first sale" doctrine, but copyright periods should be drastically reduced, there needs to be a duty of maintenance, and copyright holders should not be allowed to sell the right pursue those in breach of what remains.