paused development on a new instagram app aimed at kids 10 to 12 years old. norah. o donnell: yeah, and first that whistle blower is going to be on 60 minutes. carter evans, thank you. fewer undocumented immigrants will face arrest, under new rules unveiled today by the biden administration. authorities are now being told to pursue only those migrants who have entered the u.s. illegally since last november, or those considered a threat to public safety. that s a major change from the trump policy of apprehending anyone in this country illegally. all right, tonight we re getting our first look inside a u.s. military base that s housing evacuees from afghanistan. it s one of eight bases helping more than 60,000 afghans resettle. cbs s nancy chen reports on how their lives have changed since fleeing their homeland. reporter: surrounded by miles of farm and corn fields, this is where life in america begins for nearly 13,000 afghan evacuees. today we were allowed inside