The board that oversees the Millennium Challenge Corporation, an independent federal agency that doles out foreign aid, is meeting next week  to discuss open data and transparency. But the meeting, it turns out, is closed to the public. As a policy, MCC board meetings are held behind closed doors. But with transparency on the agenda, “it’s hard to see why the entire board meeting would be closed to the public,” said John Wonderlich, policy director for the Sunlight Foundation, a nonprofit group that advocates for increased government transparency. He credited the MCC for releasing copies of its meeting minutes. Meanwhile,…