Alaska's Mount Redoubt Blows, Planes Still Flying

Finally an "Orange" alert level that means something: "An erupting Mount Redoubt exploded again this morning at 4:31 a.m.--its fifth and strongest discharge yet," sending ash to 60,000 feet. Travelers may have some delays to look forward to; the Anchorage airport is open, but Alaska Air has canceled 19 flights. Meanwhile, the volcano is at "Red" alert, as more activity may be on the way.