Update, 9 March 2011: both Princes and Asda have committed to removing tuna caught using fish aggregating devices in combination with purse seine nets from their supply chains by 2014. Read more >>
Princes sent out a message to almost 18,000 of you who emailed the company asking them to stop using fishing methods that kill sharks, turtles, dolphins and other fish in order to fill their cans with tuna.
I've taken the letter apart to explain what their response really means. The bottom line is they're still bottom of the tuna league.