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- The FBI accused Paul Faye Sr. of planning an attack on the southern border.
- But his son, Joseph Faye says his father only "talks a big game."
- Faye said he'd warned his father about undercover agents, but Faye Sr. didn't listen.
The son of a man accused of planning a violent attack on the southern border says his father is a "compulsive liar" who "talks a big game."