Mark Zuckerberg testifies in social media addiction trial

FACE WITH GRIEVING FAMILIES FROM ACROSS THE COUNTRY WHILE HE. FAMILIES FROM ACROSS THE E COUNTRY WHILE HE TOOK THE STAND IN A. THE COUNTRY WHILE HE TOOK THE STAND IN A LANDMAMARK SOCIAL MEDIA. LANDMARK SOCIAL MEDIA TRIAL. LAURA JARRRRETT HAS THE. TRIAL. LAURA JARRETT HAS THE STORY. LAURA JARRETT HAS THTHE STORY. >> Reporter: META CEO. G. >> Reporter: META CEO MARK ZUCKERBERG ARRIVING AT A LOS. ARRIVING AT A LOS ANGELES COURTHOUSE TODAY TOTO A BARRAGE OF. ANGELES COURTHOUSE TODAY TO A BARRAGE OF CAMERAS AND GRIEVING. TODAY TO A BARRAGE OF CAMERAS AND GRIEVING PARENTS FROM AROUND. CAMERAS AND GRIEVING PARENTS FROM AROROUND THE COUNTRY. THE COUNTRY. >> I WANT ACCOUNTABILILITY. >> I WANT ACCOCOUNTABILITY. >> Reporter: PARENTS. >> Reporter: PARENTS WHO SAY THE SOCIAL MEDIA EMPIRE. WHO SAY THE SOCIAL MEDIA EMPIRE ZUCKERBERG BUILT I IS. ZUCKERBERG BUILT IS PURPOSELY ADDICTIVE AND DANGEROUS FOR. PURPOSELY ADDICTIVE AND DANGNGEROUS FOR KIDS. AND DANGEROUS FOR KIDS. >> THE INTENTION OF. KIDS. >> THE INTENTION OF THE COMPANY WAS TO. >> THE INTENTION OF THE COMPANY WAS TO PREY ON TEENS, PLOIT.

THE COMPANY WAS TO PREY ON TEENS, PLOIT THEM SO MAKE MAKE. PREY ON TEENS, PLOIT THEM SO MAKE MAKE PROFITS. THEM SO MAKE MAKE PRPROFITS. >> Reporter: FACEBOOK. AT. >> Reporter: FACEBOOK FOFOUNDER COMBATIVE AT TIMES ON THE STAND, TIMES ON THE STAND, DISMISSING THE IDEA HIS MAIN GOAL WAS TO. DISMISSING THE IDEA HIS MAIN GOAL WAS TO MAXIMIZE THE TIME. MAXIMIZE THE TIME TEENS SPENT ON INSTAGRAM SAYING, TEENS SPENT ON INSTAGRAM SASAYING, THAT'S NOT HOW WE RUN. INSTAGRAM SAYING, THAT'S NOT HOW WE RUN THE COMPANY NOW. THAT'S NOT HOW WE RUN THE COMPANY NOW. ZUCKERERBERG REPEATEDLY. THE COMPANY NOW. ZUCKERBERG REPEATEDLY CONFRONTED WITH. ZUCKERBERG REPEATEDLY CONFRORONTED WITH COMPANY PRESENTATIONS. CONFRONTED WITITH COMPANY PRESENTATIONS AND INTERNAL DOCUMENTS. AND INTERNAL DOCUMENTS SUGGESTING HE HAS KNOWN FOR MORERE THAN A. SUGGESTING HE HAS KNOWN FOR MORE THAN A DECADE ABOUT THE. KNOWN FOR MORE THAN A DECADE ABOUT THE POPULARITY OF THTHE APP. DECADE ABOUT THE POPULARITY OF THE APP AMONG YOUNG CHILDREN. POPULARITY OF THE APP AMONG YOUNG CHILDREN. ONE REPORT FROM 2015. AMONG YOUNG CHILDREN. ONE REPORT FROM 2015 ESTIMATING THAT OVER 4.

ONE REPORT FROM 2015 ESTIMATING THAT OVER 4 MILLION INSTAGRAM. ESTIMATING THAT OVER 4 MILLION INSTAGRAM USERS WERE UNDER 13. MILLION INSTAGRAM USERS WERE UNDER 13 WHILE THE META BOSS. USERS WERE UNDER 13 WHILE THE METATA BOSS EMPHASIZED SAFETY. WHILE THE META BOSS EMPHASIZED SAFETY FEFEATURES IN PLACE LIKE. EMPHASIZED SAFETY FEATURURES IN PLACE LIKE AGE VERIFICATION. FEATURES IN PLACE LIKE AGE VERIFICATION. META, , WHICH OWNS. AGE VERIFICATION. META, WHICH OWNS INSTAGRAM, DENIED ANY. META, WHICH OWNS INSTAGRAM, DENIEIED ANY BLAME FOR THE HARM. BLAME FOR THE HARM ALLEGED BY THE NOW 20-YEAR-OLD WOMAN AT. ALLEGED BY THE NOW 20-YEAR-OLD WOMAN AT THE E CENTER OF THIS. 20-YEAR-OLD WOMAN AT THE CENTER OF THIS LANDNDMARK TRIAL WHO. THE CENTER OF THIS LANDMARK TRIAL WHO SAYS SHE DEVELOPED. SAYS SHE DEVELOPED DEPRESSION AND ANXIETY FROM GETTING HOOKED ON. DEPRESSION AND ANXIETY FROM GETTING HOOOOKED ON INSTAGRAM AS A YOUNG. INSTAGRAM AS A YOUNG KID AND SHE IS NOT THE ONONLY ONE. KID AND SHE IS NOT THE ONLY ONENE. MORE THAN 1,500. ONLY ONE. MORE THAN 1,500 LAWSUITS WITH SIMILAR. MORE THAN 1,500 LAWSUITS WITH SISIMILAR CLAIMS REMAIN PENDING,

LAWSUITS WITH SIMILAR CLAIMS REMAIN PENDING, LIKE LAURIE, WHOSE. CLAIMS REMAIN PENDING, LIKE LAURIE, WHOSE DAUGHTER DIED BY. LIKE LAURIE, WHOSE DAUGHTERER DIED BY SUICIDE AT 18. DAUGHTER DIED BY SUICIDE AT 18. >> THESE KIDS SHOULD.