2010.10.23 - security guy

Few days ago i've read series of articles regarding hacking KFC coke-machine, street lights (more on this topic), trains' emergency stop system, cars (over the internet), barcodes scanner and even a case of 14-year who derailed tramways in the city of Łódź. after this i came to conclusion that nowadays there should be dedicated studies and jobs for “security guys” that would consult any modern project on security level. how come care only if it works for them in times where IT and electronics are all around us? have you ever imagined yourself ending up in the hospital instead of work/lectures/holidays, because tramway you were riding on was hacked by a kid with infra-red device and crashed?