Does it actually matter that much in Java? In Java, a collection of objects is already a collection of pointers, so wouldn't we get a fair number of cache misses anyway? Or does the JVM have some cool mechanism to minimize those?
I agree, the e-voting technology should be a lot more secure, but as long as they keep improving it, I don't see it as too big of a problem, but if they used the same technology in the states for example, I would be pretty worried. The influence Estonia has in the world is negligible compared the US, so if something was to go wrong, sure, it would be pretty bad, but compared to the same happening in a more influencial country, it would be pretty minor.