You young people will one day be Singapore's workforce, you've
to be conditioned to live and more importantly work here. And where
better to condition you than in school? That's why education is
compulsory, so each and everyone of you will be conditioned.... i
meant educated. I shan't talk about education since topic is about
school secrurity.
So now in school you got security and of course you're told it's
for you own good. Conditioning objective?
Let Singaporeans learn that everything the authorities do is for
your own good. Leave the thinking to those who knows what's GOOD
FOR YOU.
Security guards let students feel safe in school. Conditioning
objective?
Let Singaporeans get used to security. There always someone
GUARDING YOU! But somehow it reminds me of Changi Prison (not that
i've been there .... but maybe someday soon. Who knows?). You'll be
released when you served your time. Hmmm......
To enhance security, cameras aka CCTV are installed to watch over
the students. Conditioning objective?
Let Singaporeans get used to cameras watching them. So watch what
you do! Except maybe the MRT station, CCTV for show only.
Additional benefit of providing employment for old folks who would
otherwise make noise and cause trouble thus creating bad
publicity.
IT'S ALL FOR YOUR OWN GOOD. 
