It's an interesting question...How Loud Are You Singing?
This is a reference to the churches along the railways in Germany during World War II.
You see, the members of the churches along the rails could hear the Jews screaming as the trains traveled along to the concentration camps. The solution was to sing longer and louder so they couldn't hear the screams anymore. Watch this video to fully understand this and h0w it relates to today. Remember, it only took 10% of the population of [...]