Rather than be followed by the expressions of sympathy and shock one might usually expect, the murder of United Healthcare CEO Brian Thompson in New York was also greeted with ridicule and even approval by a substantial portion of the public. Worried that copycat killers might take that response as a cue to replicate the alleged actions of accused shooter Luigi Mangione, CEOs and their companies are reconsidering their security measures.

With the Inauguration days away, how does this inform the security landscape for that high-profile event? Are CEOs paranoid or are they really at increased risk now? What can they and ordinary people worried about their personal security do to make themselves safer?

Ted Rall and Manila Chan ask these questions to security expert Mark Ledlow, a former US Marine and founder of Ledlow Security.