I'd think that this scam would be uncovered pretty quickly: "Why are you asking me about X? I don't know anything about it" "You sure seemed to understand it

I'd think that this scam would be uncovered pretty quickly: "Why are you asking me about X? I don't know anything about it" "You sure seemed to understand it on the phone screen" "Phone screen? What phone screen? My recruiter gave me this plane ticket and told me to come interview on-site"