- Juliette Kayyem: Donald Trump can say it's terrorism with no evidence, but a serious investigation isn't that easy
- Security vulnerabilities in aviation are many, but mechanical cause is also possible, she says
CNN national security analyst Juliette Kayyem is the author of the best-selling "Security Mom: An Unclassified Guide to Protecting Our Homeland and Your Home." She is a professor at Harvard's Kennedy School, a former assistant secretary of Homeland Security in the Obama administration and founder of Kayyem Solutions, a security consulting firm. The opinions expressed in this commentary are hers.
(CNN)EgyptAir Flight 804's downing is a tragedy. But we still don't know what kind of tragedy. While Donald Trump's certainty that it was a terrorist act may assure some, and could even be accurate, this isn't how investigations like this work. Theories serve only as a way to guide this investigation, but it is facts that will tell us what actually happened. And that matters not simply for the future safety of the global aviation network, but for the stresses on America's own aviation apparatus.