a scene from tahrir scare, egypt. the protesters. you would think this is before hosni mubarak announced he was leaving. >> what you're seeing happened march 9th, a sign that the new egypt continues to be plagued by old problems. more from cnn's ivan watson. ♪ >> reporter: a young egyptian singing a rebel song. in tahrir square, the epicenter of egypt's revolution, he raised his voice in protests during 18 historic days and nights which brought down a despot and left many egyptians full of hope. >> he can say anything he want without being afraid. >> reporter: look what happened to him nearly a month later,