GOP Rep. McCaul: we should "reconsider having both the President and Vice President together at something like that"

<p>Republican Congressman Michael McCaul tells Dana Bash the shooting outside the White House Correspondents' Dinner raises new questions about protecting the presidential line of succession, "The takeaway I got was that the line of succession... had an explosive device gone off, you would have knocked out the President, Vice President, Speaker — the three in line of succession."</p>