Viktor Bout, "The Merchant of Death," is the Russian arms dealer that we traded to get Brittney Griner back after her arrest in Russia. Bout is described to be the worst of the worst, a terrorist, who conspired to kill Americans, and one of the most dangerous people on the planet. Griner was serving a 9-year sentence for drug smuggling and possession charges. While we're always glad to welcome Americans home if charges were illegitimate, ultimately we don't know, there are still reasons to be concerned with this prisoner swap.