In a follow-up to another mini-flap involving NPR’s Juan Williams, someone at the network leaked an internal memo (via mediabistro.com) from news director Ellen Weiss explaining NPR’s decision to reject an opportunity to interview President Bush. The network declined the White House offer because President Bush would only speak to Williams and NPR doesn’t let subjects dictate who interviews them, Weiss said last week. Williams instead conducted the interview for Fox News (transcript, via Dan Froomkin, video at FoxNews.com), where he is a regular commentator. In the memo released today, Weiss explained that NPR rebuffed a similar offer from Sen. Hillary Clinton–who agreed to let the network pick her interviewer–and said Williams violated company policy by criticizing NPR’s decision in the press. All “media requests that come to you for interviews about NPR, our activities or decisions must be forwarded to the Communications division to handle,” Weiss wrote.