Crews have opened a second temporary channel allowing limited marine traffic to bypass the wreckage of Baltimore’s collapsed Francis Scott Key Bridge, which is blocking the vital port’s main shipping channel. Authorities said Tuesday that work is also continuing to open a third channel that will allow larger vessels to pass through the bottleneck since the bridge collapse one week ago. The channels are primarily for vessels helping with the cleanup effort. Meanwhile, Gov. Wes Moore said at a news conference that rough weather conditions in recent days have made it unsafe for divers who are trying to recover the bodies of the four construction workers believed trapped underwater in the wreckage.