This is video of Dr. Shakil Afridi addressing a crowd on the threat of polio.<br/> <br />But the doctor is also infamous in Pakistan for using the cover of a door-to-door vaccination campaign to help the U.S. find Bin Laden.<br/> <br />Now Dr Afridi's lawyer has resigned from the case he took up two years ago because of safety concerns.<br/> <br />(SOUNDBITE) (Urdu) LAWYER SAMIULLAH AFRIDI, SAYING:<br/> <br />"The problems that we have faced in the past two years are not hidden from anyone. I have been receiving threats from various organisations and because of those threats I even went to Dubai some time back. So one reason is these threats. Some organisations do not want us to continue defending this case. I am getting threats almost on a regular basis. Not only is my life in danger, my family is also in danger. I have therefore decided to quit this case."<br/> <br />Lawyer Samiullah Afridi -- who is not related to the doctor -- says US pressure on Pakistan to release the doctor was "inappropriate" and was h
