I knew I had read/heard this years ago. Thanks for the find.
The 'computer' scans intl traffic for keywords, in ways very similar to google and virus detection software.
They do not have androids with cables attached to their necks listening in on all phone calls simultaneously.
This is a tool (the computer) being put to a good use sifting for keywords and patterns to be used to protect life.
Some home PC users have higher powered systems than Echelon.
Those that jump to the microphone and announce how illegal this is, must have much to hide. First one to the mike is the guiltiest. ( I see it was apparently...Pelosi.)