How does one recall an escaped GM salmon?  Ask him/her nicely to swim back to the farm?
Sorry, we simply do not know enough to be sure that GM food is safe.  Until we do, it is premature and potentially dangerous to approve GM plants and animals.  We need real research by unbiased scientists—we do not need to make the population into laboratory test subjects.

N.B.: The above was my commentary on the Food Democracy Now petition to stop the approval of GM salmon.