The headline's subject is not only plural, it's plural in triplicate. The verb needs to be plural. Once will do. Lower, in the story's second graf, the writer tells us " ... none of the collisions have brought down a plan." None, as copy editors -- and readers know -- is singular.
What the Story Says Doesn't Matter
On the local front, the Charlotte Sun's consumer
advocate advises caution when entering
pay-to-publish literatry contests. But
the copy desk disagrees and says so in the hed.