http://www.dailymail.co.uk/sciencetech/article-3720772/China-launch-unbreaka... [quote] China to launch unbreakable quantum spy satellite - and it could one day lead to a megascope the size of Earth that could 'spot a license plate on Jupiter's moons' - Satellite produces entangled photon pairs which form an encryption key - These photons will theoretically remain linked over great distances - This means that any attempts to listen in will be detected on the other side - Scientists say this could one day make for a secure global network Scientists in China are set to launch the world’s first ‘quantum satellite,’ which could one day make for an ultra-secure global communications network.The 1,300 pound craft contains a crystal that produces pairs of entangled photons, which will be fired to ground stations in China and Austria to form a ‘secret key.’Entangled photons theoretically maintain their link across any distance, and according to the scientists, any attempts to breach this type of communication would be easily detectable.[end of portion quoted] Jim Bell (I have big questions about some of these statements in this article. But given the subject matter, quantum entanglement, confusion by lay individuals is to be expected.)