…American diplomacy has already undergone vast changes in the past few decades and is now so heavily encumbered by fortresslike embassies, body armor and motorcades that it is almost unrecognizable. In 1985 there were about 150 security officers in U.S. embassies abroad, and now there are about 900. That does not include the military officers and advisers, whose presence in many embassies — especially in the Middle East — can change the atmosphere. Security has gone from a marginal concern to the very heart of American interactions with other countries, Writes Robert F. Worth

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