Safety after 9/11

I do not understand while people are complaining about going through a scanner. It is not a invasion of privacy because it is for our safety. After what happened on 9/11/2001 people should be more concerned because there is people trying to bomb us. I do not think that getting patted down will make sure there is no bombs with them. When they have to take nude pictures they delete them because they take so many and after they take them they are pretty much useless. I will do anything that way I am safe.