In world's history, riots caused by religious groups happened many times. So, many countries such as People's Republic of China strengthen pressure on religious groups.
In Japan, Awa Dance Festival, which is the famous dancing festival in Tokushima, was also used as a place for advertising anti-nuclear power station activities on the other day.
Though it is true that festivals or religious rituals included political messages in history, I think they should be separated from political issues to make them enjoyable for everyone.
