I think the wreck in the Thames estuary is of genuine concern to the prospect of building a new airport for London on reclaimed land there. The ship would need

I think the wreck in the Thames estuary is of genuine concern to the prospect of building a new airport for London on reclaimed land there. The ship would need to be dealt with before building the airport, which surely would require exploding it, which would in turn break windows 10s of km away. Building new international airports for major cities is already expensive before you consider that!