Osborne Reef is an artificial reef off the coast of Fort Lauderdale, Florida, constructed of concrete jacks in a 50 feet (15 m) diameter circle. In the 1970s, the reef was the subject of an ambitious expansion project utilizing old and discarded tires. The project ultimately failed, and the "reef" has come to be considered an environmental disaster—ultimately doing more harm than good in the coastal Florida waters. In 2007, after several false starts, cleanup efforts began when the United States military took on the project. This cleanup exercise provides the military with a real-world training...