ok i cant take all this cynicism and fear. first of all what is going on is very theoretical research. stuff like this happens because we want to find out more about our universe. we want to find out more because we want to improve life and gain knowledge. there is more than enough money out there supporting this and we know this because
a) look at cern
b) look at research in japan like super-kamiokande
c) look at fermi labs
d) look at nasa
they all have money and are expanding (especially cern which is ironically supported by the weakest economies of the nations where those things i listed are located)
theres a lot more research going on about this sort of thing than i think people realize. has anyone heard of LISA? its a space probe, nay 3 space probes that will fly in formation 3 million miles apart from each other to detect gravitational wave disturbances as big as one tenth of one atom and its almost ready. or what about COBE? google that one. anyway the point is we are constantly increasing our ability to search for and create things like black holes (which given the size we would create them at, like the amount of antimatter we produce, is totally harmless in everyway). large black holes are actually fairly harmless until you get really really close (because gravity happens to be one of the weakest forces we know of). when we create a black holes im not sure just what we will find, we do know that it should help us research extra dimensions and other crazy things that happen on the quantum level according to m theory and what have you. the goal of this research however is not to come up with a specific product or tool or answer that we are looking for, its really just to see what nature has to offer us and what else we might look into researching. If we get the answers we predicted then hey! whoopdeedoo thats great! if not? great! more questions!
as for a few of the comments made so far.
inflation: inflation was a time period that is theorized to have happened right at the beginning of the big bang. this was when the universe for a very short time expanded at well over the speed of light which causes today a universe that is fairly uniform throughout. that means it is mostly made up of space that is generally the same temperature (like 2 degrees kelvin or something). the non uniform parts (planets, stars, all matter) were caused by slight temperature fluctuations.
cern: any concern of cern is somewhat acknowledgable because basically no one except quantum physicists have a very clear idea of the research they do there however people also worry about getting radiation poisoning because the live next to a nuclear powerplant (poisoning not caused by an accident like a meltdown which never happens really around the plant). people fear a lot of things and tend to get other people to be afraid of them we call this the media. anyway i dont trust anyone whos insanely scared of what they dont understand.
proof: man we are not going to prove anything about m-theory in a long long time unless we get really really lucky. actually it is said to be unproveable in theory which makes it permanently safe as a theory.
stopping black holes: as itzak said: "5) Watch it Dissolve: The black hole nearly instantaneously disintegrates into a dozen or more different kinds of particles as a result of Hawking radiation" yes thats exactly what happens. to big ones too but it takes much longer.
antimatter: first playing with antimatter, now this?..... yeah but obviously antimatter hasnt destroyed the world yet now has it.
i will garuntee all of you that all of your theoretical research is entirely benevolent. i mean i loved akira as much as anyone but scientists dont act like that. especially not the europeans...