For the most part, you could live your entire life by only purchasing stocks headquartered in the United States without sacrificing anything in the process by avoiding international securities. Feel the need for Anheuser-Busch or Heineken? You’ll do just fine or better owning Brown Forman. Feel the need to own BP or Royal Dutch Shell? Things can work out awfully swell for you if you stuff your portfolio with Exxon, Conoco, and Chevron. Want to own GlaxoSmithKline? You can take care of business by owning Johnson & Johnson.