The recent shoot-out between Ukraine’s two leading security agencies in Kyiv has raised eyebrows among Ukrainians. Two days later, there are still more questions than answers.

The two intelligence agencies reportedly were working together to foil Moscow’s targeting a Russian anti-Kremlin commander in Ukraine – but someone started shooting.

A rare confrontation between two of Ukraine’s security agencies broke out in Kyiv on September 2 while authorities were investigating an alleged Russian Federal Security Service…