September 2, 2014 7:52 am SDUSD Supe Welcomes Students Back to School NBC 7’s Elena Gomez reports from Lincoln High School where she talks with SDUSD Superintendent Cindy Marten about what the district is focusing on this new school year. US & World Videos 0:53 What are those blue blobs piling up on San Diego beaches? Velella velellas! 3:27 Poway Unified superintendent fired following bullying claims 0:35 Blue blobs washing up on San Diego beaches again 2:52 Poway Unified fires superintendent following investigation into bullying claims 0:34 5 people injured after falling from border fence