The video was editing from collected or produced videos by Czech & Slovak youtubers during the protests in cities and towns across Czech Republic in 15. 3. 2012. Another mass protests been arranged on this Sunday 15.4. ten times more towns then last month.
The song written and sung by Karel Kryl. After Velvet revolution in Czechoslovakia (1989) he reportedly became disappointed with the transformation of society. He continued to write protest songs criticising the transformation of government until his death in 1994.
Many people of Czech (as well as Slovak) became disappointed later especially last 5-10 years. So they stop closing their eyes and came out on the streets and squares.
Thanks dejvidgerman for the video.