US Secretary of State John Kerry invited Snowden to "man up and come back to the United States."
"The bottom line is this is a man who has betrayed his country, who is sitting in Russia, an authoritarian country where he has taken refuge," Kerry told the CBS network.
"If he has a complaint about what's the matter with American surveillance, come back here and stand in our system of justice and make his case," Kerry said.
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Police have released CCTV images of the Manchester suicide bomber on the night of the arena attack.
The grieving father of a teenage victim of the Manchester bombing told a mother hugging her son: “Look after him - because you never know.”
The ITV soap currently runs five episodes a week across three days - two on Mondays and Fridays, and one on Wednesdays.