Sharon Kyle: At a minimum, let’s hope the Trayvon Martin tragedy — like the Emmett Till tragedy years ago — puts a spotlight on the danger of allowing fear and hostility to drive social policy.
Georgianne Nienaber: Social networking may turn out to be the first line of defense against public relations spin by providing real time gathering of data on the massive river of oil flowing into the Gulf of Mexico from the Transocean/Deepwater Horizon well explosion. Maps generated by satellite and “predictions” are only so valuable. One of the tenets of remote sensing is that “ground truthing” be a mandatory part of the equation. Truth is the operative word here as Gulf Coast residents face an unprecedented environmental disaster.