Your statement that Musharaf has reined in the army is a little out of context here. It is not Musharaf who has reined in the army, but the army of Pakistan which has reined in Musharaf now. If you have read the latest information on Pakistan in CNN, the new army chief, General Kayani has given instructions that no senior officers of the army can go and meet Musharaf without his express permission. Secondly, it seems that the orders for reversion of the army officers from the civilian posts have been given.
