Last weekend, upon re-entering the USA through JFK, the INS officer circled where I had checked "no" regarding plants, food, etc. He didn't comment on it; however, the customs agent asked me a couple of questions (occupation, purpose of trip, etc.) before letting me through. This has rarely happened to me - usually, they just waive me through. I'm curious as to what the INS flagging meant? The INS officer did try to chat with me briefly. Did he not like my responses? Or was the circling something else and the customs officer was asking on his own? FWIW, I had no European food products with me at all.