Think about it: you can call, email and even watch your counterparty on FaceTime, Skype or GoToMeeting. So, why do companies fork out more than $1.2 trillion a year—a full 1.5% of the world’s gross domestic product (GDP)—for international business travel? The expense is not only huge; it is also growing—at 6.5% per year, almost ...

James Bond might be the world’s best-known spy, but nowadays even an obscure international business traveler could face similar surveillance threats from a hostile foreign intelligence service or even a business competitor. For example, though most American business travelers aren’t aware of the threats of espionage, the dangers are greater and more prevalent than ever before. ...