By Doina Chiacu and Mark Hosenball WASHINGTON (Reuters) - The United States is not aware of any specific threat to the U.S. Islamic State militants and their supporters, however, "have demonstrated the intent and capability to target American citizens overseas," Homeland Security Secretary Jeh Johnson said in a statement.
By Brendan O'Brien (Reuters) - A police officer has resigned after pointing a rifle at protesters during racially charged demonstrations in Ferguson, Missouri, and another has been fired for inappropriate social media posts stemming from the two weeks of civil unrest, officials said on Friday. Violent protests erupted in the St. Louis suburb of Ferguson after white police officer Darren Wilson shot and killed black 18-year-old Michael Brown on Aug. 9, drawing global attention to the state of race relations in the United States. Police and demonstrators in Ferguson clashed nightly for days after the shooting, with authorities coming under fire for mass arrests and the what critics said were the use of heavy-handed tactics and military gear. At a protest on Aug. 19, Ray Albers, a police officer in the neighboring community of St. Ann, pointed his rifle at a Ferguson protester during a heated verbal exchange, an episode that was captured on video and widely circulated on social media.