With all the people at their disposal, there had to be some was to steal a portal. Maybe Doctor Strange and his friends could find a way to such it through a bigger portal - a portal within a portal, if you will.
Fury held her gaze for a moment, then gave just the smallest of shrugs. "Or we could see about destroying it somehow. We'd have to talk to someone who knows more about the portals." And while Tony had made contact, he wasn't back home yet. "You wouldn't have someone for that in mind, would you?"