For the past five years, crews have been dismantling the San Onofre Nuclear Plant — which was shut down in 2013.The plant is easily recognizable by its iconic twin domes along Interstate 5. But now, the domes' days are numbered, as crews prep to remove them.We discuss the decommissioning effort and what this all means for the San Diego County landmark.Guest:Alexander Nguyen, multimedia producer, KPBS