The government later said it could not exclude the possibility that state agents were involved.
It was the first arrest in the case, and they also said they could not exclude more arrests.
At a briefing on Tuesday, Tom Ridge, the homeland security director, said he could not exclude any possibilities.
"I could not exclude the possibility," he writes, "that the US had managed to crack our secure fax".
Asked if that could include a presidential challenge, he added, "That is an option that he could not exclude".
First, the lack of a baseline PET image meant that we could not exclude carryover effects in this crossover design.
Last year, the Supreme Court ruled that a Missouri grant program funding playground improvements could not exclude religious schools.
However, we could not exclude the possibility that compensatory mechanisms masked an abnormal phenotype in their KO mice.
We found that VF was not driven by epicardial rotors, but could not exclude the presence of stable rotors hidden within the ventricular walls.
Mr. Jordan has termed the breach an "anomaly" but said he could not exclude it happening again.
However, they could not exclude disruptive events over the entire planning horizon.
