Bill Gates's younger Russian 'lover' and her links to notorious Kremlin spy Anna Chapman

Two young women stride along a New York street, barely breaking step to flash smiles at the camera. One of them is slightly out of focus, but her face — and the face of her friend — is unmistakable. Chillingly so.

The strawberry blonde on the right is Russian bridge player Mila Antonova, the woman alleged this week to have been the former lover of billionaire Microsoft co-founder Bill Gates — as well as an associate and financial beneficiary of the late financier and convicted sex offender Jeffrey Epstein.

What...