SPILL RESPONSE BRIEFING U.S. Coast Guard Adm. Thad Allen, national incident commander for the Deepwater Horizon oil spill response, briefs Navy Secretary Ray Mabus during a tour of the Unified Area Command Center in New Orleans, June 29, 2010. Mabus is on a five-day visit to the Gulf Coast. He will meet with state and local officials in Louisiana, Mississippi, Alabama and Florida. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 550037-V-ZSF43-340.jpg Photo Gallery