He stressed its role as a bridge between cultures, and its unique position as a large secular democracy with a 99 percent majority Muslim population.

VOA: standard.2009.04.06

You're not intervening with people, you're observing usually large numbers of people in a population.

不干涉他人生活,只是观察一个人群中的许多个体

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选