 The exercise occurs as oceans around the world have increasingly become a stage for international competition, sometimes violence. RIMPAC runs through August 1st. In weather, today will be partly sunny, isolated showers. Tonight, partly to mostly cloudy, isolated showers. Highs in the upper 80s, lows in the mid-70s. We'll have trade winds 15 to 20 miles per hour. Now back to Weekend Edition.