The problem with all those feral cats is just that. They have no natural "predators" (except for cars ... Do cats even have natural predators?) around this place and they breed faster than rabbits (and I haven't seen rabbits in quite some time now). I always have to take out my trash at the crack of dawn because of those cats. If I take out the trash at night, those cats will tear the bags open, forcing me the next dawn to collect all the trash from the roadside ... again. In the past, it happened rarely, but now, I can count on those feral cats to rip open my bags.
I do concur on the long-term planning though. Right now, 68 days after the elections, we are still trying to piece a government together. We do need civic reforms on a massive scale, since the state will be bankrupt by 2012, 2014 at the latest. But the current constitution and law-package simply is way too complicated and it needs to be reformed. Otherwise this country will tear itself apart. But I'll keep the politics for another thread.
So, you have a population of cats that are causing damage to your plastic bags. They can easily get into these bags and eat the leftover food you have in such bags. Instead of reducing feral cats by catching and sterlizing the feral ones, your nation forces every person to sterilize every cat in the country that doesn't have a pedigree.
I'm not sure how familiar you are with history when it comes to cats, but the last time there was such widespread discrimination about cats, serious consequences happened.
As for natural predation, yes they have natural predators. The problem is humans tend to attack the predators that pray on cats. You know, things like cat-killing dogs.
A tip for you, buy a plastic trashcan with a locking lid. I don't think you'll need anything even close to what we people up near the Colorado Rocky Mountains require to keep BEARS out of our trash, but if you have that you'll be sure to be safe from the nasty cats. It works better, just ask the bears, whom remain relatively intact
despite some nuisance things they sometimes do. As long as the clasp is simple I am sure your garbagemen won't mind and will understand. Anything requiring opposable thumbs will do.