Tesco says introducing DNA testing of its meat products will be "a significant investment for Tesco, borne by Tesco."
What about the Food Standards Agency doing some? Should it be at the discretion of retailers?
More top news
Did the International Space Station take a wrong turn?
The wife of a British aid worker held by Islamic State militants has recorded a message to his captors appealing for his life to be spared.
Even if you're having a tough day in the office, it's unlikely to be as difficult as the one facing the director of the US Secret Service.