During the 2011-2012 school year, participants included 120,000 students from 253 K-12 schools.
Participants include the families of the deceased and people from all over the world.
The final participants included four officers and six drug users.
The more than 70 participants included many economists who had held posts in the Clinton administration.
Participants include university students and community members both young and old.
On the Administration side, participants included the President; his chief of staff.
Participants at both meetings included some of the most renowned scientists in history.
Participants will include representatives from the engineering and construction firms working at the site.
Participants included mostly women serving as state legislators, along with a mixture of others in public service.
The 51 participants of this study included four family members (mother, father, college student and adolescent) who returned surveys.