Imran Khan, chairman of the Pakistan Tehreek-e-Insaf, sits on stage during a protest rally to stop NATO supply routes into Afghanistan and drone attacks, in Peshawar
Imran Khan (C), a Pakistani cricketer-turned-politician and chairman of the Pakistan Tehreek-e-Insaf (PTI) political party, sits on stage during a protest rally to stop NATO supply routes into Afghanistan and drone attacks, in Peshawar November 23, 2013. Khan, whose political party is now in charge of the volatile Khyber Pakhtunkhwa (KP) province bordering Afghanistan, has threatened to cut NATO supply lines through his region from November 23 if U.S. drone strikes do not end. REUTERS/Fayaz Aziz (PAKISTAN - Tags: CIVIL UNREST POLITICS)
Imran Khan, chairman of the Pakistan Tehreek-e-Insaf, addresses a protest rally to stop NATO supply routes into Afghanistan and drone attacks, in Peshawar
Imran Khan (C), a Pakistani cricketer-turned-politician and chairman of the Pakistan Tehreek-e-Insaf (PTI) political party, addresses a protest rally to stop NATO supply routes into Afghanistan and drone attacks, in Peshawar November 23, 2013. Khan, whose political party is now in charge of the volatile Khyber Pakhtunkhwa (KP) province bordering Afghanistan, has threatened to cut NATO supply lines through his region from November 23 if U.S. drone strikes do not end. REUTERS/Fayaz Aziz (PAKISTAN - Tags: CIVIL UNREST POLITICS)
A paramilitary soldier guards the site of Friday night's bomb blast in Karachi
A paramilitary soldier guards the site of Friday night's bomb blast in Karachi November 23, 2013. Two blasts, following in quick succession, killed at least seven people and injured 20 in Karachi late on Friday, police said. REUTERS/Akhtar Soomro (PAKISTAN - Tags: CIVIL UNREST CRIME LAW MILITARY)
Residents gather near a damaged auto-rickshaw at the site of Friday night's bomb blast in Karachi
Residents gather near a damaged auto-rickshaw at the site of Friday night's bomb blast in Karachi November 23, 2013. Two blasts, following in quick succession, killed at least seven people and injured 20 in Karachi late on Friday, police said. REUTERS/Akhtar Soomro (PAKISTAN - Tags: CIVIL UNREST CRIME LAW TRANSPORT)
Residents gather near a damaged car at the site of Friday night's bomb blast in Karachi
Residents gather near a damaged car at the site of Friday night's bomb blast in Karachi November 23, 2013. Two blasts, following in quick succession, killed at least seven people and injured 20 in Karachi late on Friday, police said. REUTERS/Akhtar Soomro (PAKISTAN - Tags: CIVIL UNREST CRIME LAW TRANSPORT)
A paramilitary soldier guards the site of Friday night's bomb blast in Karachi
A paramilitary soldier guards the site of Friday night's bomb blast in Karachi November 23, 2013. Two blasts, following in quick succession, killed at least seven people and injured 20 in Karachi late on Friday, police said. REUTERS/Akhtar Soomro (PAKISTAN - Tags: CIVIL UNREST CRIME LAW MILITARY)
Residents gather near a damaged auto-rickshaw at the site of Friday night's bomb blast in Karachi
Residents gather near a damaged auto-rickshaw at the site of Friday night's bomb blast in Karachi November 23, 2013. Two blasts, following in quick succession, killed at least seven people and injured 20 in Karachi late on Friday, police said. REUTERS/Akhtar Soomro (PAKISTAN - Tags: CIVIL UNREST CRIME LAW TRANSPORT)
Security officials keep guard during Friday prayers near a mosque which was attacked during sectarian clashes in Lahoe
Security officials keep guard during Friday prayers near a mosque which was attacked during sectarian clashes in Lahore November 22, 2013. The Defence of Pakistan Council called for countrywide protests on Friday after sectarian clashes broke out during a Muharram procession in Rawalpindi last week. REUTERSMohsin Raza (PAKISTAN - Tags: CIVIL UNREST RELIGION)
Supporters of Ahl-i-Sunnat Wal Jamaat (ASWJ), a political and religious group, are seen through a party flag as they shout slogans during a protest in Lahore
Supporters of Ahl-i-Sunnat Wal Jamaat (ASWJ), a political and religious group, are seen through a party flag as they shout slogans during a protest in Lahore November 22, 2013. The Defence of Pakistan Council called for countrywide protests on Friday after sectarian clashes broke out during a Muharram procession in Rawalpindi last week. REUTERS/Mohsin Raza (PAKISTAN - Tags: POLITICS CIVIL UNREST RELIGION TPX IMAGES OF THE DAY)