OK not that it did not disturb me either... I've seen a similar email go around for years.
I like to be the devils advocate, not that I really have that opinion... But I usually like to bring other opinions to the table.
What makes killing rats OK and killin squirrels not? What makes killing a Tuna OK and a Dolphin not? What makes killing a Chicken OK and a Penguin not! How about Killing a Rabbit, Pig, Dear, Lamb OK and Dogs/Cats not? What about eating a Salmon vs Shark/Dolphin/Emperor Angel?
Is it the fact that the other creature is Cute? Who makes the rules that something is OK and the other is disturbing?
OK, going off the edge now... How can a Human Kill another?! Or an army, kill a whole people?
They start by dehumanizing the other party... So their people think of them as Rats, etc (insert your fav pests here).
You eat whatever you can consume is the rule of survival... The other rules are made by religion (Man shall not kill man for food, but for survival it's usually permissible - In self defense)
The post does not necessarily reflect my beliefs... But the ideas are there to make us think outside and beyond the box.
The moral of the story is Man does not always have the same morals as other Man... But still have more morals than any other creatures.
I apologize for any mistakes I've made in the post... It's 6AM and I have not had my Coffee yet!