US commemorates 9/11 as its aftermath extends and evolves

NEW YORK (AP) — Americans are commemorating 9/11 with mournful ceremonies, volunteering, appeals to "never forget" and rising attention to the terror attacks' extended toll on responders.A crowd of victims' relatives is expected at ground zero Wednesday, while President Donald Trump is scheduled to join an observance at the Pentagon. Vice President Mike Pence is to speak at the third attack site, near Shanksville, Pennsylvania.Former President George W. Bush, the commander-in-chief at the