This morning, I met with Sgt. Maj. Carlton Kent in his office for a wide-ranging interview. We discussed a variety of issues for future stories, and eventually the subject of this blog, Battle Rattle, came up. Kent, the Marine Corps’ top enlisted Marine, then asked about “the handshake video.” As in, had we seen the video of him shaking hands with recently retired Commandant Gen. James Conway? The one adapted from the service’s 2009 birthday message and set to the music of legendary rapper Snoop Dogg? For those not familiar with what I’m talking about, feel free to review it here. Fair…