President Barack Obama waded into the debate over campus free speech and “trigger warnings” Monday night, telling a town hall meeting that there is no need to let college students be “coddled” from views they don’t like. Obama was speaking in Des Moines, Iowa, and fielded a question from a student who asked what he thought of Republican presidential candidate Ben Carson’s idea to cut off federal funding from schools that show too much political bias. The perceived over-sensitivity of college students is becoming a hot topic in national conversation, after campus protests have led to canceled commencement speakers and demands that classes include “trigger warnings” so that students who may be offended can skip class on certain days.