Or even better, you could have them produce a sonar ping that search and rescue could listen for... which is what they already do. :-) [ http://trueslant.com/m

Or even better, you could have them produce a sonar ping that search and rescue could listen for... which is what they already do. :-) [ http://trueslant.com/milesobrien/ http://trueslant.com/milesobrien/ ]