Every few months for the past three years, Jeff Vierstra has been receiving infusions in his spine that target and disable a mutated gene that made it likely he would develop ALS.

Perspective: The chilling online narrative is likely wrong. But it reveals a different truth about America.

A chilling pattern has emerged after a string of US scientists died or went missing in recent months. Retired General William Neil McCasland, 68, and NASA aerospace engineer Monica Jacinto Reza, 60, ...