It's a good letter as far as these things go. It lists the major press freedom advocacy groups and human rights watchdogs who have called for Assange to be released, correctly identifies the threats this case poses to press freedoms around the world, and avoids sneaking in any of the classic smears against Assange that normally work their way into high-level mainstream objections to the persecution of the WikiLeaks founder. It's an undeniably good thing that this letter happened.

That said, I'd like to bump this portion of the letter into the spotlight for a moment and highlight a some bits for emphasis:

The prosecution of Julian Assange for carrying out journalistic activities greatly diminishes America's credibility as a defender of these values, undermining the United States' moral standing on the world stage, and effectively granting cover to authoritarian governments who can (and do) point to Assange's prosecution to reject evidence-based criticisms of their human rights records and as a precedent that justifies the criminalization of reporting on their activities. Leaders of democracies, major international bodies, and parliamentarians around the globe stand opposed to the prosecution of Assange. Former United Nations Special Rapporteur on Torture Nils Melzer and the Council of Europe's Commissioner for Human Rights Dunja Mijatovi? have both opposed the extradition. Australian Prime Minister Anthony Albanese has called on the U.S. government to end its pursuit of Assange. Leaders of nearly every major Latin American nation, including Mexican President Andrés Manuel López Obrador, Brazilian President Luiz Inácio Lula da Silva, and Argentinian President Alberto Fernández have called for the charges to be dropped. Parliamentarians from around the world, including the United Kingdom, Germany, and Australia, have all called for Assange not to be extradited to the U.S.