After the federal government gave its nod to the country's spy agency Inter-Services Intelligence (ISI) to tap calls and messages, Omar Ayub Khan, leader of the Opposition on Tuesday announced that he would challenge government's move, "which is unconstitutional," Geo News reported.
The Pakistan government gave a green signal to the country's spy agency Inter-Services Intelligence (ISI) to tap calls and messages in the apprehension of an offence against national security, Geo News reported.