Iran's envoy helped boost Islamabad-Tehran ties.FBI lists ambassador over Levinson disappearance.US seeks information, and offers up to $25 million.ISLAMABAD: Pakistan has defended the Iranian Ambassador to Pakistan, Reza Amiri Moghadam, following his inclusion in the US Federal Bureau of Investigation's "most wanted" list over his alleged involvement in the 2007 disappearance of former FBI agent Robert Levinson.Foreign Office spokesperson Shafqat Ali...