It’s not easy being a soldier or a spy: you have to immerse yourself in dangerous situations, assess intelligence in the field, speak foreign languages, and handle all kinds of technical equipment and weaponry. Learning how to do all of that takes a lot of training, which is why the research wing of the US Department of Defence wants to figure out ways to make its workers learn these vital skills quicker – even if they have to zap them to do it.

Source: The US Military Wants to Hack The Human Brain to Help Us Learn a Second Language Faster