Although not currently available to consumers, the theoretical idea that beef can be grown in a lab from a single bovine cell is capturing mainstream attention. Most often sneered at or satirized (recently the sitcom Better off Ted did a brilliant job of the latter), supporters of this idea (including PETA) do exist.
Their argument is that lab-grown (officially called in vitro meat) beef and pork shows potential for being more environmentally friendly than farm raised meat. There are also arguments that because such proteins are produced under controlled conditions, they will be safer food sources, more nutritious and more humane than conventional meat.
Sound like science fiction? Guess again. Apparently small amounts of edible fish can already be produced in a lab environment.
How do you feel about this idea? Does it freak you out or inspire you? If in vitro meat became our only meat supply would you become a vegetarian? I think I would.