now many of the 4,000 residents ofenceof ensinada. a state of emergency remains in effect. >> the volcano is very unstable and could erupt again. it is an eruption, larger lava flows and explosions that could put people's life at risk. >> at calbuco continued to belch ash, here volunteers distributed food and water to those trying to salvage their belongings. or simply find their pets. thee could yous are sitting in what 48 hours ago were lush green pastures now they and other life stock are also being evacuated. engaging. his language started coming. i remember just thinking, i think he's getting this. >> breaking the silence, when autism and innovation meet. >> hi. >> hi. >> hello siri. >> hello. >> and letting go. the search for support, when children grow up. >> parents are scared to death. the number one question is: what will happen to my children after my husband and i die? what will happen to them as an adult? >> an "america tonight" special report, living with autism. thanks for joining us, i'm joie chen. autism was first for