Pakistan is at a critical stage and the biggest threat it is facing is internal extremism and sectarianism, said President General Pervez Musharraf here on Saturday. “The country is passing through the worst ever critical moment and is facing two major threats of religious extremism and sectarianism,” Gen Musharraf said at the Pakistan Military Academy (PMA) Kakul on Saturday. In an apparent reference to the Lal Masjid standoff, he said the government must think carefully about use of force against extremists. “We will be rational before using might, as we will have to face our own brothers and sisters.”