Diplomatically, the disclosure of the latest Snowden documents poses a new challenge to Mr. Obama.
"If these documents pose a threat, they should be controlled, if possible," Dr. Aftergood said.
Electronic documents pose special problems, Ms. Nimsger said, because every e-mail message and every document sent may survive on a recipient's computer even after the sender has deleted it.
A handful of undercover D.E.A. agents, according to the documents, posed as associates to the informant, including the two who offered their services as pilots and another who told the traffickers that he had several businesses that gave him access to bank accounts that the traffickers could use to deposit and disperse their drug money.
Of course, the structure and content of documents pose several limitations that would have to be considered.
Although the interpretation network analysis tested here has the potential to support the field of sustainability monitoring, the structure and content of documents pose several limitations.
Worried ANC veterans last week released a document posing the question: "How can we, as a nation, lurch from crisis to crisis‚ and state there is no crisis?" Cyril Ramaphosa, vice president and leading contender for succeeding Jacob Zuma, used the sacking of Gordhan to launch what could be interpreted as an attack on the faltering president.
In the meantime, the consultative document poses more questions than it answers.
He takes close-up color photographs documenting posed, obsessively detailed set-piece war scenes using hundreds of scale-model military figures and related military objects.
50% of units currently identify and document preparations posing particular risk.
