Right now, as many as a hundred different government agencies have some responsibilities for homeland security, and no one has final accountability. For example, the Coast Guard has several missions, from search and rescue to maritime treaty enforcement. It reports to the Transportation Department, whose primary responsibilities are roads, rails, bridges and the airways. The Customs Service, among other duties, collects tariffs and prevents smuggling -- and it is part of the Treasury Department, whose primary responsibility is fiscal policy, not security.