The growing threat of religious persecution has been branded "evil" by the Prince of Wales who has compared the dangers facing minority faith groups across the world with the "dark days of the 1930s". In a video for the religious freedom charity Aid to the Church in Need, Charles said the scale of the problem is under-estimated and not simply limited to Christians in the Middle East, claiming research shows other groups including Jews and Yazidis are also being targeted. He said: "We are now seeing the rise of many populist groups across the world that are increasingly aggressive towards those who adhere to a minority faith. "All of this has deeply disturbing echoes of the dark days of the 1930s.