The most prestigious private security firm in the United States was founded on a unique vision of value to its prominent clients, but which also has some less obvious downsides. — From the Bismarck Brief, a weekly intelligence-grade analysis of an important institution, industry, or live player. Wealthy and prominent people, as well as their families, associates, and organizations, can become targets for theft, extortion, kidnapping, stalking, or violence. While keeping a low profile or relying on police agencies can mitigate…