Tuna is in short supply due to overfishing.  Japanese restaurants can’t get enough tuna to make sushi.  What do you do?  You look for substitutes.  Hmmm.  What to use.  Another fish?  No.  How about horse?  Perfect.  Raw horse sushi.  Just doesn’t seem right to me.   However, it will give Andrew Zimmern something new to try on his Bizzare Foods show.

http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/06/26/easushi126.xml