There was understandable skepticism that the Trump team would enthusiastically enforce the Global Magnitsky Human Rights Accountability Act, signed by President Barack Obama in his final days in office, which authorizes the president to block visas and sanction individuals and entities from any country that abuses human rights or engages in “acts of significant corruption.” But the first-ever list of 51 such targets, announced by the State and Treasury departments on Dec. 21, was a clear sign the Trump administration is supporting the law and implementing it in good faith.

The world’s worst crooks and killers should be running scared. The law and the executive order President Trump issued make it much easier for the U.S. government to single out and punish egregious cases of abuse. Included in the list were Artem Chayka, the son of the prosecutor general of Russia; Gao Yan, a senior Chinese security official; and Maung Maung Soe, who oversaw Burmese military atrocities against ethnic Rohingya.