The Shiites are not the expansionists that the Sunnis are. The real problem with the Shiites these days is that the "Twelvers" are running the show in Iran. When there was a popular uprising against the 12er rule in Iran a few years ago, Obama sat quietly and didn't encourage the Iranian people to rise up against them.
While I wouldn't want to live among the Shiites, I don't think they would be much of a threat without the 12er rule.
That’s probably true. None of the Islamic sects can be called “peace loving,” simply because the tenets of Islam require conquest, but the Sunnis seem to have really taken it to heart...as have messianic Shiites such as the loonies in Iran.