(NEWSER) – The US may boost security measures at its own airports—and call for improvements abroad—amid fears of attacks fueled by the crisis in Syria, ABC Newsreports. Terrorists in the country, according to new US intelligence, may be working on "creative" bombs targeting commercial planes, sources tell ABC. Thousands of fighters in the region have US and European passports; they may aim to attack flights headed to the US or Europe. The threat "is different and more disturbing than past aviation plots," says one insider.

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