Is something that "may have happened" newsworthy?

Today’s newspaper reported that “North Korea may have restarted its nuclear plant”.

As a news buff, I find that this reporting is shoddy – worthless, even. Saying that something “may have happened” tells me absolutely nothing I didn’t now before. Why not report what did happen?

Is this a sign or reportorial laziness? Or is it sign of the news cycle which demands news even if there isn’t any?