earthquake damage. we re going to literally by human eyeball have to determine whether those individual cracks need to be repaired. woodruff: that s all ahead on tonight s newshour. major funding for the pbs newshour has been provided by: okay, listen. somebody has got to get serious. i think. we need renewable energy. .renewable energy is vital to our planet. you hear about alternatives, right? wind, solar, algae. i think it s got to work on a big scale. and i think it s got to be affordable. so, where are they? it has to work in the real world. at chevron, we re investing millions in solar and biofuel technology to make it work. we ve got to get on this now. right now. and by bnsf railway. the william and flora hewlett foundation, working to solve social and environmental problems at home and around the world. and with the ongoing support of these institutions and foundations. and. this program was made possible by the corporation for public broadc