Shell Oil ship passes under Portland bridge after dangling protesters come down

A Shell Arctic oil-drilling vessel made its way Thursday under a Portland bridge and out to sea after being stalled for more than 24 hours in the harbor by demonstrators dangling from the St. Johns Bridge.After some Greenpeace USA protesters who had been suspended on the bridge since as early as 2 a.m. Wednesday voluntarily came down and authorities forced others in kayaks to leave, the icebreaker made its way through a small opening on the Willamette River. Shell's Fennica was on its way to an Alaska drilling operation. Activists in kayaks tried a last ditch attempt to block it once again, but the Coast Guard thwarted their efforts, according to local news reports.