New Delhi, Sept 17 (ANI): Congress leader Rashid Alvi on Tuesday said that Gujarat Chief Minister Narendra Modi is a threat to country's democracy and the BJP leaders knew it. However, they are probably unable to speak. Meanwhile, he also poked fun at the BJP, and said the decision to announce Modi as the prime ministerial candidate has been taken by the Rashtriya Swayamsevak Sangh (RSS) and not the BJP.