Pit Bull, left, and Enrique Iglesias perform in the halftime show of an NFL football game between the Miami Dolphins and Dallas Cowboys, Thursday, Nov. 24, 2011, in Arlington, Texas.
Dead zone may refer to: Dead zone (cell phone) , an area where cell phones cannot transmit to a nearby cell site Dead zone (ecology) , low-oxygen areas in the world's oceans Dead zone (military) , blindspots in a fortification's visual field which were relatively sheltered from defending fire Films Dragon Ball Z: Dead Zone , the first of thirteen Dragon Ball Z films Whisper of Dead Zone, the translated English title of the 2012 Turkish film ÃlÃ¼ BÃ¶lgeden FÄ±sÄ±ltÄ±lar .
Dead zones occur in many areas of the country, particularly along the East Coast, the Gulf of Mexico, and the Great Lakes, but there is no part of the country or the world that is immune. The second largest dead zone in the world is located in the U.S., in the northern Gulf of Mexico.