NEW : Yemen expert says issue 's timing , 10 years after Cole bombing , is no coincidence . More than one of these could be planted to explode at the same time . NEW : Magazine 's ideas , ideology aimed at lone jihadist , Christopher Boucek says . Comment: Targeting government employees is seen as paramount .
NEW : Yemen expert says issue 's timing , 10 years after Cole bombing , is no coincidence . NEW : Magazine 's ideas , ideology aimed at lone jihadist , Christopher Boucek says . Comment: Targeting government employees is seen as paramount .