**A US-born spokesman for al-Qaeda has been arrested in Karachi, Pakistani security officials have said. **Adam Gadahn has appeared in a number of al-Qaeda videos, going back at least six years, encouraging violent jihad.
The latest emerged on Sunday - the same day as his arrest was reported - urging US Muslims to attack their own country.
He was charged with treason in the US in 2006 and a reward offered for his arrest - which has not yet been confirmed by Islamabad or Washington.
Another scumbag found in Karachi … looks like Taliban / Al qaeda leadership is coming out of woodwork in Pakistani port city. Perhaps it is no longer a “safe haven” for them …
It looks like the Pakistani authroties had been warned 
Parts of Karachi are under Taliban grip: MQM
He said spy agencies were fully aware of which areas house terrorists and which madrassahs round the year spurt hatred in the name of religion. He said MQM has been informing the security agencies about the activities related to militancy