The decision to move Abedini is also disappointing in light of the landmark discussion in September between President Obama and Iranian President Hassan Rouhani. The two leaders spoke by phone and agreed to work on concerns about Iran building a nuclear weapon, but during that conversation Obama also pressed for the release of Abedini and other detainees.
This week, the State Department reasserted its call to release, or at least permit a visit by officials from the Swiss Embassy to check on the health of Abedini and detained U.S.-Iranian citizen Amir Hekmati, who was sentenced on espionage charges.
On Thursday, a group of two dozen U.S. senators sent a bipartisan letter asking Obama to engage in direct diplomatic talks with Iran. The letter calls the prison transfer a de facto death sentence.
Transfer to Karaj, customarily used to house violent criminals, has all too frequently been a de facto death sentence for political prisoners.
"We believe this new action by the Iranian regime merits additional response. It is imperative for the United States government to speak out boldly on behalf of Pastor Saeed, at the earliest possible opportunity," according to the letter, signed by Idaho Sens. Mike Crapo and Jim Risch.
Relatives and supporters learned of the transfer Monday when Abedini's father tried visiting his son at Evin Prison, only to learn from prison officials of the switch.