From historic monuments to crowded public plazas, high-profile locations are magnets for people, and too often, for threats. The past few years in the U.S. and Canada have exhibited a disturbing trend, well-coordinated attacks tend to hit sites that are symbolic, crowded, or highly known. In early 2025, both Washington, D.C., and Vancouver experienced attacks on highly crowded public areas. These events highlight the need for vigorous high-profile site security. Synagogues, c