Australia, concerned over social media's impact on kids, placed restrictions for children under 16 on many major platforms. It's too soon to say if the law's working, but it's now a global test case.

Marques Ackerman scored a career-best 95 for South Africa and Australia fast bowler ‌Mitchell Starc took 6-72 as the hosts were bowled out for 329 on a seesaw first day of the decisive third test at Newlands on Tuesday.