Another example of correcting surface defects and assuming everyone is squared away in their heads. Sorry, you won't reduce assault and mistreatments by clamping down on nose art. It's almost like saying that by eliminating violent TV everyone will turn into the Stepfords. Nope...

Yet another case of bureaucrats with too much spare time

It's just one branch of a growing tree.  The last number of decades, men have been taught to be ashamed of their natural impulses.  Jack Donovan wrote the book:

http://www.jack-donovan.com/axis/2012/03/the-way-of-men-masculinity-explained/

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Google: airplane nose art wwii.      There is one that would have Afghan men studying most intently.

"The concept of nose art was invented by American pilots and ground crews during World War II."   According to  http://en.wikipedia.org/wiki/N...The first recorded piece of nose art was a sea monster painted on the nose of an Italian flying boat... in 1913. This was followed by the popular practice of painting mouths underneath the propeller... spinner, initiated by German pilots in World War I.... The cavallino rampante (prancing horse) of the Italian ace...Francesco Baracca... was another well-known symbol, as was the red-painted aircraft of Manfred von Richthofen.... However, nose art of this era was often conceived and produced by the aircraft ground crews, not by the pilots.