Twins separated at birth?

A 26 year-old man traveling to Pakistan using his sister's passport "passed three security checks unchallenged before boarding a flight to Islamabad." Just one of the reasons why the UK may well be al-Qaeda's next [1] major target.

"Man flies to Pakistan using sister’s passport," from the [2] Daily Times, December 30:

LONDON: The British authorities are investigating how a United Kingdom (UK) citizen flew to Pakistan using his sister’s passport before he was discovered by Pakistani officials and sent back.

According to a report in The Times, 26-year-old Kasim Raja from Moseley, Birmingham, travelled to Pakistan unknowingly on his younger sister’s passport.

Following the incident, security at Britain’s Birmingham airport was criticised as ‘a total failure’.

Raja passed three security checks unchallenged before boarding a flight to Islamabad. It was only on arrival that passport control staff noticed the error and he was sent back to the UK.