[quote=WilsonTurner] Oh, I suppose. How about 1 particle accelerator, but then again, people wouldn't necessarily know that it's a particle accelerator; they know big stuff is there, but not necessarily that type of item. [/quote] People would still get to notice the energy signatures made by the device, on top of the huge amount of energy the island would be drinking. The thing would be crowned with venting ports from the island's nuclear reactor core, making it obvious it's there. And then to get the man power and equipment there to dig and build it would leave enough invoices everywhere reading, "to TYPICAL VILLAIN LOLAPOLZA BASE AT FICTIONAL BULLSHIT ISLAND OFF AFRICA" that everyone with a brain would know it's there. You'll also need a colony of scientists to figure anything out, to feed them, and to get the equipment to maintain the island, or the tools to make the tools to maintain the base. IT won't be secret, not in the corporate and federal field. And anyone playing with Google Maps would find it. And making the Anti-Matter is still far too expensive, and frankly you're still trying too hard.