On May 31 , 2011 US Congressmen Dan Burton shown his grave concern over abduction of Bhutto .
On May 31 , 2011 US Congressmen Dan Burton wrote a letter to President of Pakistan Asif Ali Zardari for his safe recovery .
On May 31 , 2011 US Congressmen Dan Burton shown his grave concern over abduction of Bhutto , and wrote a letter to President of Pakistan Asif Ali Zardari for his safe recovery .