Rights. Does that include the "right" not to be treated differently on the basis of ethnicity/religion -- especially if it's one's own country?
You have the right to the free practice of your religion. More intense questioning and search based on your religion is not against the law. It is a fact that the kind of people who are most likely to carry out terror attacks against El Al are Muslims between the ages of 18-40 and people with whom they are associated (girlfriends, etc).
People around here whine (with good reason) when grandma and granpa smith are SSSSS'd and given the 5th degree by the TSA. It helps to have this thing called JUDGEMENT, and LY knows who they are looking for.