The lack of all armour and blast or fragment protection on the $50,000,000 hammer apparently reflects the current cheerful assumptions that the enemy will either never get close enough to hit back or won't have anything that can hit back. Looks like a burst from a .50 Cal, or the blast from a near miss explosion could ruin it for good.
“There are invisible rulers who control the destinies of millions. It is not generally realized to what extent the words and actions of our most influential public men are dictated by shrewd persons operating behind the scenes.”