WASHINGTON — The Islamic State’s claim of responsibility for the attacks in Paris has potentially dramatic implications in the U.S., where federal counterterrorism officials are investigating hundreds of suspected Islamic State recruits who they fear have been urged to take their fight to American streets, authorities have said.

Last month, FBI Director James Comey acknowledged an estimated 900 active investigations pending against suspected Islamic State-inspired operatives and other homegrown violent extremists across the country.

The majority of those inquiries involve suspected Islamic State recruits, officials said, who have either been radicalized through the terror group’s aggressive social media campaign or have returned to the U.S. after being trained on battlefields in Syria and Iraq. Islamic State is also known by the acronyms ISIL and ISIS.

Read the article “Anxiety Grows Over ISIL Recruits in U.S.” on usatoday.com.