Undercover US agents obtained a mysterious Russian weapon that could finally explain a baffling cluster of brain injuries ...

For decades, many of the most advanced military weapons were developed in complete secrecy.

Undercover US agents bought a weapon from a Russian criminal gang to carry out tests on the cause of Havana Syndrome, it has ...

Producers Oriana Zill de Granados and Michael Rey discuss mysterious injuries suffered by government officials, known as ...