I haven't personally had an overly invasive search, but when we flew to the US in june, we had a terrible experience with Air India. On the way in and out, our luggage had to be gone through a number of times, we were patted down three times. The worst bit was there were a number of women in full burkhas and they were forced to take off all of their outer layers in front of the whole plane as we waited to board and were patted down. One woman was wearing a sari underneath and as they are quite bulky, the security guard was asking her to unwrap it! It was really sickening and they were so upset. One of their husbands was trying to reason with the security guards and ask that they be taken aside, like to the restroom to undergo the searches, but the guard wouldn't listen.