而且，在一个从毒品到传染病和恐怖主义等等越来越容易渗透过边界的世界里，美国必须动员国际合作来解决共同面对的威胁和挑战。
And, in a world where borders are becoming increasingly porous to everything from drugs to infectious diseases to terrorism, America must mobilize international coalitions to address shared threats and challenges.