Could be a reference to Najaf, Iraq. Lots of Marines dealing with the al Sadr militia.
Yes, that could be too.
I found the following at the Marine City, Michigan website.
http://www.infomi.com/city/marinecity/
Marine City is one of three international crossings to Canada in St. Clair County. It has regular car and passenger ferry service to Sombra, Ontario. The Nautical Mile, dotted with mini-parks, lets visitors get a close-up view of ocean-going and Great Lake freighters.
The reason I bring this up is the final episode of 'The Grid' the other night. Those of you who saw it will understand what I mean. This town and countless others have all the ingredients for disaster-- close to Canada with it's large muslim population, Detroit and surrounding areas have large muslim populations and the presence of these huge Great Lakes freighters carrying everything from petrochemicals to grain.
There are a lot of big cities located on the Great Lakes that would be excellent targets for terrorist types. Get out your maps--totally mind boggling.