article_snippet: Japanese police were investigating phone calls threatening to kill U.S. Ambassador Caroline Kennedy and another American envoy, authorities said on Wednesday.
article_snippet: Tokyo police were investigating calls to the U.S. Embassy threatening to kill Kennedy and similar ones targeting Alfred Magleby, the U.S. consul general based on the southern island of Okinawa, according to police sources.
article_snippet: Japanese media reports said that the death threats came last month from a caller speaking in English, and that police were looking into the case on suspicion of blackmailing.
highlights_snippet: Tokyo police were investigating calls to the U.S. Embassy threatening to kill Kennedy .
  
highlights_snippet: Japanese media reports said death threats came last month from a caller speaking in English, and that police suspected blackmailing .