ISIS had never asked publicly for a ransom before, and the first time it did ended in tragedy.
Intelligence experts say it is "hard to calculate" what the extremist group will do in the wake of a Japanese journalist's execution.
For 70 years, Japan's constitution has banned the use of force. ISIS may push the nation toward a change.
Eleven backers of an Ohio ballot initiative include NBA hall of famers, fashion designers and businessmen.
The White House is urging parents to heed the advice of public health officials and scientists, and get their children vaccinated.
Walker is proving popular among both establishment and anti-establishment voters.
New Jersey Gov. Chris Christie's trip to Britain is being financed by corporations that do business with his administration.