Greenwald: UK authorities trying to intimidate journalists
The entire episode, Greenwald speculated, was designed to intimidate him and other investigative journalists from using classified information and digging into stories critical of the British and allied governments.
His newspaper's editor, Alan Rusbridger, detailed in an editorial published late Monday meetings with UK government officials and "shadowy Whitehall figures" in connection with Greenwald's reporting.
"The demand was the same: Hand the Snowden material back or destroy it," he said. Otherwise, the government would pursue legal action to force its surrender, he said he was told.
These efforts, including Miranda's detention, are a threat not just to the Guardian, but all journalists, Greenwald said.
"What you're essentially doing is saying that journalism is not only a crime, but now it's actually terrorism," he said. "It's an extremely dangerous precedent. They clearly abused their own law."
As to how what happened will affect his own work, Greenwald said he's more committed than ever to expose governments' abuse of their powers.
"We are absolutely going to continue to publish and, if anything, this has emboldened me," he said.