" And as if blowing it up, flooding it, and keeping it behind the klyon wasn't enough, State Security special forces patrolled the area until 1989. Some locals say there was an additional 'live fence' of thousands of vipers specially bred for this purpose by Uzbeks along the southern Black Sea, under something called decree number 56. Why Uzbeks? Why vipers? Did decree 56 read: 'Let us fulfil the five-year snake plan in one year'? "

― Kapka Kassabova , Border: A Journey to the Edge of Europe