When we cry, we cover our eyes to wipe tears and to achieve a small level of privacy - however another primary (and often overlooked) reason is to aide in our "emotional processing". When we are dramatically saddened or emotionally shocked, our intellects may understand what has transpired, but our emotions often lag far behind. When people cover their eyes after witnessing a shocking, disturbing or sad event/scene - this nonverbal is a clear signal that they are emotionally processing bad news. Such body language phenomenon exists even for those who were born blind.
Recently discovered, the remains of 520 Bosnian Muslim victims (a small fraction of those killed) from the 1995 Srebrenica Massacre were buried on July 11 at the Potocari Memorial Cemetery.