60% of .edu websites are hacked by turkish "hackers"

I started to look for backlinks of some turkish websites, and discovered that most of pirate turkish movie websites have backlinks from .edu, .gov, websites from US. After looking for those links, I saw that the websites are somehow hacked and with css display:none command are links hidden. Then I started to look every source code of .edu websites and saw that 50-60% of them have hidden backlinks to several websites from Turkey, India etc. For example, just look to the end of source code of http://www.webb-institute.edu and then look to backlinks of - for example www.bolumizleyin.com. I wrote to website owners and Google, but no responce. Please Matt Cutt, if your read this do something about those hacklinks.