Surge in English-speaking militants worries U.S., European officials

WASHINGTON (Reuters) - Increased use of English in videos by Islamic extremists and a rising flow of recruits from Europe to fight in Syria and on other battlegrounds is disturbing U.S. officials who fear some could return to Europe or come to the United States to plot attacks.

Only last week, a man who spoke English and Arabic and called himself Abu Ahmed al-Amriki (Arabic for 'the American') starred in a new video message posted on jihadist websites and produced by al Shabaab, the Islamic militant group based in Somalia.