ABC's report has also caught the attention of at least two Republicans running for president.
Former Massachusetts Gov. Mitt Romney said he was "shocked."
"The reporting has the potential of jeopardizing our national security," Romney said. "To put it quite plainly, it has the potential of affecting human life, we may never know."
Rep. Tom Tancredo of Colorado called it "absolutely irresponsible for any media to publish a story like this."
"When foreign governments and terrorist groups can simply watch the news to find out about potential U.S. intelligence operations, we have a problem on our hands."
Tancredo will ask the attorney general to open a criminal probe into the source of the leak and the network's decision to disclose the information, as well as call for congressional hearings.
"I just hope Democrats and the media show as much interest in this as they did over Valerie Plame," he said.