I read a little about this in Physics, and it's an interesting theory to note, and worth watching as progress goes, but not:
'the phenomena are difficult to reproduce with
any regularity. The focus for the future, then, is first to
increase the frequency of occurence of the effects, then to
achieve some degree of precision in their control.'
The logic we studied for this was the Zero Kelvin, or Zero Point Energy as it said in the article. Where atoms are constantly jittering around, if they were to ever be 'cooled' at Zero Kelvin, You would essentially have a piece of matter that contains no, or little form... It could turn to playdo or silly string, or liquid or gas, no one knows. I do not know how the whole effect fits into this theory, though -- but it's a darn good read!
As for everyting else, there is a lot of Conspiracy and a lot of legend in it that I know of. Conspiracy is not necessarily a lie, it was built from somewhere, and governments have been known to halt certian knowledge, control technology, and do hidden experiments, for example:
Nazi Germany Experimentation
US bio-chemical testing
(which happened in New York and San Francisco -- the CIA, in doing testing for biochemical warfare, launched a Navy vessel some five miles off San Franicsco and released a 'flu like illness', some 5000 viruses per person, and aimed it at the SF public. Three people died. In New York, the same illness was set in lightbulbs in the NY Subway. No deaths. Military trials were held on the event in 1999, and the outcome is deemed 'not public knowledge'. But it did get a little CNN airtime).
(still technology, and aggressively fought to be held within moral guidelines)
So, yeah, it could be true. And yeah, they could try to hunt them down and hush it up. Government has done that for years on end, so to speak
As an example of other government misuse of power, check out:
Area 51, the top secret US Air Force base with a legacy of supposed aliens, was brought up in a lawsuit. The civilian employees were exposed to certain chemicals when they burned nuclear waste in dumps, in the desert -- certain skin ailments and what not. The US government denied the existence of the base until finally Bill Clinton came into office, now they will not admit anything that went on, the lawyer handling the case is required to work alone, and everyone says it didn't happen, but it's on tape and there's common knowledge about it.