Two of the most important recent developments in US politics have come from social movements involving schools. Each has a different look and generational profile, but they are united in a common tactic: the use of disruptive power.
The first movement rose after a horrific mass shooting: on 14 February a former student at Marjory Stoneman Douglas High School in Parkland, Florida opened fire on students, staff and teachers, killing 17 people.
