The State Department has reportedly revoked a visa for British citizen Bill Browder, a hedge-fund manager-turned human-rights activist responsible for the Magnitsky Act. The 2012 U.S. law is aimed at punishing Russian officials believed responsible for the death in a Moscow prison of Sergei Magnitsky, who was allegedly beaten and denied medical care.
The canceling of Browder's visa came on the same day that the Kremlin issued yet another international arrest warrant for him via Interpol.
The Magnitsky Act, which freezes the assets and bans visas for certain Russians, including those close to Vladimir Putin, "touched off a nasty confrontation with the Kremlin, and the two sides have been trying ever since to undermine the credibility of the other. Recently, however, Russian prosecutors have taken that effort to a remarkable new level, claiming that Mr. Magnitsky was actually murdered by Mr. Browder," according to The New York Times.
Browder, who testified before the Senate Judiciary Committee in July, was once the largest private foreign investor in Russia. Magnitsky was his accountant and attorney. You can hear him here in a July interview with NPR, with a thorough take here by NPR's Miles Parks.