"Two years after the alleged leaks, the conclusion is still merely that the information 'could' cause damage - not that it 'did' cause damage," the defense wrote in a filing to the court, calling the speculation of possible damage without proof "far-fetched and fanciful." Defense attorneys said they had been given an opportunity to review some of the damage assessments.
On Thursday, however, a military judge, Army Col. Denise Lind, ruled in favor of the government's argument, saying that evidence of harm caused after the leaks were released isn't relevant to determining Manning's guilt or innocence and that it might confuse jurors by shifting the trial's focus, according to the Associated Press.
Kevin Gosztola, a writer for the left-leaning news website Firedoglake who attended the four-day hearing at Fort Meade, Md., and listened to a briefing from military defense attorneys, said Lind thought Manning couldn't have known what damage would occur after the documents were leaked, so the amount of damage shouldn't affect his case.
"The government would like this to be a case solely about whether or not Manning violated the rules, not what the consequences of what such violations would be," said Steven Aftergood, the director of the Project on Government Secrecy in the Federation of American Scientists, a nonpartisan research center for national security issues.
Other than two narrow exceptions to the restriction, the defense won't be able to use evidence of actual harm during the trial, which was a key portion of its argument, legal experts said. Beth Hillman, the president of the nonprofit National Institute of Military Justice, said the defense would have a "very steep hill to climb."
But because evidence of harm still can be used during sentencing, it could help lessen Manning's sentence if he's convicted, said Michael Navarre, special counsel at Steptoe & Johnson L.L.P. Manning could face life imprisonment.
Aftergood said he thought the question of harm would become much more relevant at sentencing.
"There's a difference between running a red light and killing a pedestrian versus running a red light and nothing else happening," he said. "If he disclosed information that caused identifiable harm, then he needs to answer for that. If his disclosures produced only vague discomfort, then he deserves a firm slap on the wrist."
Another pretrial hearing in late August will include discussion of Manning's treatment while in solitary confinement at the Marine Corps base in Quantico, Va.