Yes, I choose to believe those facts. There isn't even any conflicting evidence to dispute it.
Those who want to accuse the USA of lying, and Pakistan of being the source of the anthrax attacks can do so. But they don't have any factual basis for that position. They make those accusations because they want them to be true.
There are going to be people here who object to that. I find it odd that this bothers you.
It isn't necessarily the case that we must believe "the USA is lying" for there to be a Pakistani connection to the anthrax incidents.
First, the declarations that the Daily Jang letter did not contain anthrax may be wrong. We've already seen a lot of errors in our domestic anthrax investigations. E.g., Thomas Morris, the postal worker who died of inhalation anthrax, as assured the suspicious letter he'd handled did not contain anthrax (see Electronic Telegraph, Haunting call for help from dying anthrax victim). How did he get it, then?
And what about the Ft. Detrick finding of bentonite in the anthrax samples? One day we are told this is so; the next we are told it is false.
In any case, whether the Daily Jang letter contained anthrax or not, there may be a Pakistani connection to the anthrax mailings. Several Pakistanis were detained, at least one arrested, in Hamilton NJ in the last couple of weeks - the probable site of the mailings.
At least two apartments were raided, one by investigators wearing hazmat suits. We are told by the FBI that testing of articles seized "is not completed yet."