First, security here is everywhere.
Second, security here is pointless.
I have had to walk through security to get to supermarkets, discount stores (think Walmart), high-end shopping malls, temples, mosques, movie theaters, national monuments, airports, hotels, you name it. You can't walk into a large building and not walk through a metal detector. The ACLU would probably go ballistic if the US had even 1% of the number of pat-downs that I have had to go through daily here.
Unfortunately, it's entirely pointless. Generally, I don't take my belt/jewelry/phone off when going through the metal detector, and most of the time, it doesn't even detect that. Whether or not I set off the detector, the process is the same: they (occasionally) wave a wand over, and then send me to a second person who briefly pats me down (<5 seconds in all). Keep in mind, the exact same process is applied to those who do and do not set off the metal detector. A few times, I've set it off and they just wave me through without even checking me further. It's mind-boggling.
I can't say I'm a fan of ubiquitous security, but the only thing that's worse than ubiquitous ineffective security. Anybody who really wants to cause trouble can bypass it in their sleep - all you manage to do is disrupt the lives of everybody else, all the while accomplishing literally nothing.