In the Florida Keys, federal wildlife officials have gone high-tech to locate metal sheets, cinder blocks, pieces of lumber and other man-made materials on the ocean floor. The undersea junk has been used to illegally harvest lobsters.
Feds Take Wrecking Ball to Undersea "Little Houses" in Florida Keys
![](https://npr.brightspotcdn.com/dims4/default/baf3934/2147483647/strip/true/crop/800x484+0+0/resize/880x532!/quality/90/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2Flegacy%2Fsites%2Fwgcu%2Ffiles%2F201408%2Flobster_traps.jpg)
Postdlf via Wikipedia Creative Commons