Dina Temple-Raston, counterterrorism correspondent, NPR
Chuck Quirmbach, reporter, Wisconsin Public Radio
Navdeep Singh, Sikh American Legal Defense and Education Fund
Questions remain about the motives of the shooter who led Sunday's deadly attack at a Sikh place of worship, known as a gurdwara, in Oak Creek, Wis. Authorities have identified Wade Michael Page as the shooter in the rampage that left six others dead.