Morning Buzz: May 9, 2007 (8:01 a.m. ET)

This morning's top stories:

• Vice President Cheney made an unannounced visit to Iraq today to meet with Prime Minister Nouri al-Maliki and receive a first-hand briefing from American military and civilian officials.
• An unidentified video store clerk has become the unlikely hero after his tip to law enforcement officers allowed them to thwart an alleged plot by six foreign-born men to assault New Jersey's Fort Nix. (Video.)
• A total of $900 in donations that presidential candidate Rudy Giuliani and his then wife made to Planned Parenthood in the 1990s, most recently in 1999, has sharpened criticism from antiabortion advocates. Giuliani says he personally hates abortion but has not strongly called for the overturning of Roe v. Wade, the 1973 Supreme Court decision that legalized abortion.
• A character on a children's show run by the militant group Hamas that bears a strong resemblance to Mickey Mouse is preaching for Islamic domination, the AP reports.
• Efforts in Little Rock to commemorate the 50-year anniversary of the historic desegregation battle there are being overshadowed by a new battle over test scores and control of the school board.