This isn't simply carelessness, it is open and shameless contempt of the office and the country for which she is supposed to be working. This individual belongs in prison.
By her own admission she did all of her State Dept. business on her private server. Since that time the sound of crickets chirping has drowned out the protests of virtually all of our elected representatives who are undoubtedly hopping mad and demanding that the rule of law be applied equally.
Shame about them crickets.