Today, the White House is issuing a new Executive Order on Open Data -- one that is significantly different from the open data policies that have come before it -- reflecting Sunlight's persistent call for stronger public listings of agency data, and demonstrating a new path forward for governments committing to open data. This Executive Order and the new policies that accompany it cover a lot of ground, building public reporting systems, adding new goals, creating new avenues for public participation, and laying out new principles for openness, much of which can be found in Sunlight's extensive Open Data Policy Guidelines, and the work of our friends and allies. Most importantly, though, the new policies take on one of the most important, trickiest questions that these policies face -- how can we reset the default to openness when there is so much data? How can we take on managing and releasing all the government's data, or as much as possible, without negotiating over every dataset the government has?