I have noticed the same phenomena in the past, and it is incredible how low the powers that wish they were will sink to surveil human beings for whatever nefarious activity they have up their sleeves. I researched a bit about brain to computer interaction, AI, the Singularity, and the hive mind and I am still in shock about this technology being used on the unsuspecting. Recently, there was an article written about Facebook using software that could detect whether someone was suicidal. I honestly don't think this should be allowed without the user's permission. You're right, big brother is always listening and watching!