What is the fine-grained topic of the following text: Samantha Haviland, who survived the mass shooting in Columbine High School nearly 20 years ago in Littleton, Colo., talks about the political actions by students in the wake of the massacre at a Parkland, Fla., high school earlier in February on Feb. 22. Only return the topic.
Samantha Haviland discussing political actions by students following the Parkland High School shooting.