No, by misdialing a number of a known suspected terrorist number, or someone whose number is recorded as having called a known suspected terrorist number.
"That's at least one way innocent Americans can be wrongfully investigated, which was the point."
How by having their voice telephone conversations taped because they are receiving incoming calls from known terrorists residing in another country?
No, by misdialing a number of a known suspected terrorist number, or someone whose number is recorded as having called a known suspected terrorist number.