this morning on "world news this morning on "world news now" -- urgent manhunt. the aggressive search for isis rebels responsible for beheading americans. this morning on "world news now" -- urgent manhunt. the aggressive search for isis rebels responsible for beheading americans. the united front against terror. >> we will not allow our enemies to hold us hostage with the sole weapons they possess -- fear. >> as friends of journalist steven sotloff speak up. safety demands. just days into the school year. students are hurt in a deadly school bus crash. why are seatbelts missing on so many buses? >> yes, there would be an added cost if there was a retrofit. >> the price of keeping students safe. and later, deep discounts.