Thursday, September 4
(Undated) -- President Obama is vowing to bring justice to the savage killers of beheaded American journalist Steven Sotloff. Speaking from Estonia today, Obama said ISIS will be degraded and destroyed. A day after the video of Sotloff's murder was released, Obama said driving ISIS from Iraq and Syria will take a sustained international effort. Vice President Joe Biden also had tough words for ISIS militants today saying, "we will follow them to the gates of hell."