So this is akin to my conspiracy question, the thread for which helped with this thought path. After constructing the universe my story will be set in, I've decided that some kind of discovery should be the catalyst for a government coverup, high profile assassination, and cause to go to war with a neighboring territory. To clarify, this discovery should be something archeological, scientific in nature. Something we might discover out in space. Something that could give an extreme advantage to whomever possessed it. Would anyone have any thoughts on what this type of discovery might be? I'm hoping to exclude "supernatural" type things. AND, if i can manage, I would like to keep aliens out of it, however, I've thought that perhaps discovery of aliens could be the Discovery. But I'm not sure how that would be cause to go to war with someone... Any thoughts?