Thousands of Islamists continue marching to Pakistan capital

Do not underestimate these people. There is a latent undercurrent in Pakistani society that supports these Islamists. Also consider the Pakistan government, led by a cricket player, is not the most stable. They will have a human catastrophe next door in Afghanistan very soon - which Pakistan is largely responsible for - which will exacerbate the instability inside Pakistan as millions seek refuge or succor in Pakistan. It wouldn't take much for things to spin out of control and these Islamists will be in charge of a nuclear-armed nation.