See http://en.wikipedia.org/wiki/Some
"Some may refer to:
* Some, a word denoting an indeterminate number of something: see Grammatical number"
Dennis Claxton
Marv Gandall wrote:
> >> "Some 30,000 people are now employed exclusively to listen in on
> phone conversations and other communications in the United States.
> >
> >
> >
> > I'd like to know where that number came from.
Meaning this unequivocal statement : "Some 30,000 people are now employed exclusively to listen in on phone conversations and other communications in the United States."
Is based on this equivocal one:
"Beyond all those obstacles loom huge buildings with row after row of opaque, blast-resistant windows, and behind those are an estimated 30,000 people, many of them reading, listening to and analyzing an endless flood of intercepted conversations 24 hours a day, seven days a week."
http://projects.washingtonpost.com/top-secret-america/articles/secrets-next-door/print/