Imagine if a student had worn Jason Bearden's T-shirt to school

The message on the shirt? 'Have a plan to kill everyone you meet.'

"Be polite, be professional, but have a plan to kill everybody you meet." — James Mattis, retired U.S. Marine Corps general and former secretary of Defense.

Gen. James “Mad Dog” Mattis’s blunt message for Marines fighting in Iraq in 2003 may have been spot on for the place and time. War is hell, and Marines are sent to war to kill.