CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)
CarnegieMellonU:
President Obama Visit to CMU (2011)