Mark Kelly

Parkland teens keep gun-control grown-ups at arm's length

Before the shooting had even stopped, teenagers hiding at their Florida high school were talking about gun control. Within days, they had launched a crusade against gun violence — one that will result in a nationwide series of protests Saturday.

In taking up the fight, the students have joined forces with liberal organizations that have been pushing for years for tighter gun laws. That's led to criticism that the youngsters' cause is less spontaneous than it seems and that they are being used as pawns.

Such suspicions infuriate the teenagers who have worked furiously since last month's massacre at their Marjory Stoneman Douglas High School in Parkland, where 17 people...