The U.S. expert, who until now could not be named for legal reasons, has been revealed as Professor Michio Hirano, head of the Division of Neuromuscular Disorders at Columbia University Medical Center in NY. Dr. Hirano has treated other children with conditions similar to Charlie, and is a world specialist in the area of mitochondrial disease research, specifically, the nucleoside bypass therapy treatment that that Charlie's parents are seeking for him.
Charlie Gard's parents have charged that they are being "held captive" by the NHS as a result of the British government's handling of their case.
"One would have expected that Great Ormond Street Hospital would have said something to the effect [of] 'we welcome this new cutting-edge technology and we'll do everything to come alongside the parents to help them, '" Mahoney said. His parents have been seeking permission to transfer him elsewhere, thus far unsuccessfully.
His parents appealed all the way to the Supreme Court but lost but on July 7 GOSH applied for a fresh hearing at the High Court.
Numerous attempts were made to get help to Charlie, including Rep. Trent Franks (R-Ariz.) and Rep. Brad Wenstrup (R-Ohio) introducing legislation to grant Charlie citizenship, and the Hospital of the Vatican - with support from President Donald Trump and the Pope - requesting the baby be taken to their facility.
"I understand you walking out", he said.
British judges are tasked to intervene when families and doctors disagree on the treatment of people unable to speak for themselves.
"Unlike the US, English law is focused on the protection of children's rights", said Jonathan Montgomery, professor of health care law at University College London.
Detail of the plan emerged on Friday during the latest round of a legal fight between Great Ormond Street bosses and Charlie's parents. Petitions have circulated to offer support and others have arrived at Charlie's bedside to pray.
"This case is about Charlie's rights and what the evidence tells us that they require", he said. Little Charlie Gard's parents deserve the right to bring him to the U.S. to try to find treatment for him - that shouldn't even have to be discussed! "That will be the only consideration of the judge at the hearing". The courtroom was packed as Francis heard arguments on differences of medical opinion.
The hospital, meanwhile, offered an unapologetic defense of its decision in a submission to the High Court. "The hospital feels certain that they have done all that they have for Charlie out of love and because they could not have done anything less even if they had wanted to", the hospital added.
The Charlie Gard case has become a touchstone for those on the religious right in both Britain and the USA, who are furious because they consider Charlie's right-to-life sacrosanct, and are also upset at the perceived interference of the state in parental choice.