Earlier reports based on Snowden 's documents revealed the existence of the NSA's PRISM program , and indicate that the National Security Agency spied on Brazilians.On other End, President Obama said that the Syrian government used chemical weapons on its citizens and The United States may have to take military action against Syria.Against same issues, yesterday various pages on NASA 's website were hacked by a Brazilian Hacker named "" and the visitors to the pages were first greeted with a pop-up window which reads" followed by another reading "" before the deface page appears.