for our nation to speak honestly about the complicated and emotionally charged issues that this case has raised. >> we do not need words, we need action now. >> why trayvon had to go -- >> why trayvon had to go. >> we have a long way to go with changes that need to be made. >> i think it is going to be important for all of us to do some soul searching. we need to spend some time on how to bolster and reinforce our african-american voice. >> so here we are nearly one year later. has anything really changed? let's bring in our panel, commentator and legal analyst mel robins and political commentator mark lamont-hill. thanks to both of you. mark, we'll start with you, the zimmerman verdict sparked a national conversation about race. now looking back, did that conversation really have a lasting impact?