Related: World news

1. More world news
   1. Egypt's Coptic Christians say they are 'no longer safe'
   2. Kerry calls Karzai to ease anger over Taliban office
   3. Obama proposes reductions to nuclear arsenal
   4. Tropical storm heads for Mexican oil installations
   5. Assange: WikiLeaks helping Snowden gain asylum
2. More top stories
   1. 'Sopranos' star James Gandolfini dies at 51
   2. Millions of trafficking victims go unidentified: Kerry
   3. This is your brain on happy: Machine can read your emotions
   4. Plot to build 'Hiroshima light switch' weapon foiled: Feds
   5. HPV infections fell by half in teen girls after vaccine, study shows
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