Over at Danger Room, Noah Shachtman got a look at the military's current and next-gen night-vision goggles (or, more accurately, "goggle," or "monogoggle," since they only cover one eye). Hardly anyone ever gets to look at these, so to actually be able to try them out is pretty amazing. The goggles live up to the hype: they pack incredibly sensitive thermal sensors (enough so that reflections and handprints both glow) as well as embedded LCDs that transmit all kinds of data.
BAE Systems's Adaptiv technology enables objects as big as tanks to completely vanish from view--when seen at night with an infrared sensor, admittedly, but that's still a major advantage. An Adaptiv-outfitted tank can change its thermal signature to look like anything from a big rock to a truck to nothing at all, fading into the background and becoming invisible.