July 29, 2015 6:31 pm Dangerous Rip Currents Keep Lifeguards Vigilant Dangerous rip currents and 6-foot waves are keeping lifeguards vigilant in L.A. County. Lolita Lopez reports for the NBC News at 6p.m. on Wednesday, July 29, 2015. US & World Videos 3:34 Pro-Palestinian encampments continue on UCLA campus 2:41 USC plans alternative commencement, limited activities 0:37 Car chase ends in standoff in Compton 3:47 Counter-protesters respond to pro-Palestinian encampment at UCLA 2:25 Police investigate stabbing near Metro bus