July 4, 2015 8:30 am Heightened Security for Fourth Security concerns are heightened during the Fourth of July holiday. Melissa Etezadi reports for Today in LA on Saturday July 4, 2015. US & World Videos 0:44 SoCal Edison shuts off power for high fire risk areas in the Inland Empire 2:05 Brush fire erupts in Sepulveda Pass 1:15 Hazardous, unhealthy air in parts of Ventura County due to Hughes Fire 1:52 Northbound 5 Freeway in Castaic begins to reopen 1:37 ‘We are getting the upper hand,' LA county fire chief says