What is happening is no fantasy. A foreign power has been proven to have attempted to influence the 2016 election. The depth of that intrusion into the American political system , the extent to which it influenced the election's outcome as well who was involved both foreign and domestic is what is driving the investigation.
Given what that this foreign has been proven to have done on that front begs the question. What are it's capabilities when it come to infiltrating the US military and intelligence networks?