Senate Intelligence Chairwoman Dianne Feinstein warned Friday of the risk that the insurgent group ISIL could be preparing fighters to attack American and European targets.

“It has become clear that ISIL is recruiting fighters in Western countries, training them to fight its battles in the Middle East and possibly returning them to European and American cities to attack us in our backyard,” the California Democrat said in a statement backing military action authorized by President Barack Obama. “We simply cannot allow this to happen.”

Feinstein called for a broader military campaign against ISIL, not just the targeted missions authorized by the president.

“It takes an army to defeat an army, and I believe that we either confront ISIL now or we will be forced to deal with an even stronger enemy in the future. Inaction is no longer an option. I support actions by the administration to coordinate efforts with Iraq and other allies to use our military strength and targeting expertise to the fullest extent possible,” Feinstein said....