Bergen : Bergen shootings not an isolated case . There has been a string of cases of veterans and service people attacking military targets . He had specifically cited the case of Sgt . Bergen says it 's good that Bergen is reviewing flaws in security . Peter Bergen : 47 issue that slipped through the cracks was status of contractors .
Bergen : Bergen shootings not an isolated case . There has been a string of cases of veterans and service people attacking military targets . Bergen says it 's good that Bergen is reviewing flaws in security . Peter Bergen : 47 issue that slipped through the cracks was status of contractors .