Increase Recruiting News Today

>> indeed. barbara starr reports there can concerns troyer groups could exploit the chaos. >> reporter: yemen now on the brink of civil war. amid the rising unrest, the united nations warninging the worst may to be come as a group -- as groups apply for power. >> unless a solution can be found in the coming days the country will slide into conflict and fragmentation. >> reporter: a u.s. official tells cnn al qaeda fighters which have vowed to attack the u.s. are moving quick three increase recru...