Those are legitimate examples. I think overreaction to rare events (like the difficulties added to travel and the damage to the rights of suspects after 9/11) is more common, but I can't prove it.

Some kinds of GM food cause different allergic reactions than their ancestral cultivars. I think you can justifiably care to a similar extent as you care about the difference between a Gala apple and a Golden Delicious apple.

Edit: Granted, most of the reaction is very much overblown.