Finally — with al Qaeda and ISIL peddling the lie that the United States is at war with Islam — all of us have a role to play by upholding the pluralistic values that define us as Americans. This week, we’ll be joined by people of many faiths, including Muslim Americans who make extraordinary contributions to our country every day. It’s a reminder that America is successful because we welcome people of all faiths and backgrounds.

That pluralism has at times been threatened by hateful ideologies and individuals from various religions. We’ve seen tragic killings at a Sikh temple in Wisconsin in 2012 and at a Jewish community center in Kansas last year.

We do not yet know why three young people, who were Muslim Americans, were brutally killed in Chapel Hill, N.C. But we know that many Muslim Americans across our country are worried and afraid. Americans of all faiths and backgrounds must continue to stand united with a community in mourning and insist that no one should ever be targeted because of who they are, what they look like, or how they worship.