Three makes a trend! Tim Geithner's Treasury Department just put out a press release touting its open government plan. Or, at least, some core building blocks for a plan to come. Specifically, Treasury committed to the publication of what it sees as three high-value data sets: migration data culled from tax returns, quarterly reports on bank trading and derivatives oversight, and TARP reports newly in XML. Assistant Treasury Secretary for Management Dan Tangherlini had this to say: "This government-wide effort is the next step in creating the conditions for a permanent culture of openness."