A group of Iranian lawmakers tried Tuesday to create a "friendship committee" that would open contacts with the US Congress - an unprecedented attempt to build ties at a time when Iran's hard-line leadership has also shown willingness to talk with the country's No. 1 enemy. Such a committee would break a longtime taboo on contacts with the US, enforced by Iran's powerful hard-liners since Washington broke ties with Tehran following the 1979 seizure of the US Embassy. Proponents were hoping the move would be condoned by Iran's supreme leader, Ayatollah Ali Khamenei, who has final say in all matters in the country. Iran and the United States agreed over the weekend to hold ambassador-level talks in Baghdad over security in Iraq - a limited step amid calls for the two nations to open a dialogue to resolve their escalating tensions. The creation of a friendship committee would open an unique channel of communication between politicians in the two countries, which presumably could deal with any topic.