Cathy Lanier

After framing a doctor's plea to end gun violence as a push for gun control earlier this week, NBC's Today teed up D.C.'s police chief to defend the city's strict gun regulations and slap gun "loopholes." In a segment on the Navy Yard shooter, correspondent Jeff Rossen transitioned into gun control. "You have fought hard for gun control. Yet here is somebody who is clearly mentally disturbed…