Twatter warning: "The following includes *potentially sensitive content." Why?

Twitter hid the pic below under the warning "The following media includes potentially sensitive content."  

Makes ya wonder:  Why did Twatter hide the pic below behind a "sensitive content" warning?  If someone managed to grab a telephoto pic of either the president or First Lady showing too much skin, does any American really think Twatter would hide that pic under a "potentially sensitive" warning?

Not only no, but hell no.  But for some reason they hid the pic below--I guess because it showed the two finalists for the Democrat nomination looking...a bit goofy?  Impossible to know.