Sarah Shaw describes traumatic ordeal in US detention

New Zealand mother Sarah Shaw has described her traumatic ordeal in United States immigration detention, where she and her son were held for three weeks after a visa mix up at the US-Canada border. She's finally made it back to her home state of Washington, but is required to wear an ankle monitor and still faces further court appearances. She said she's full of gratitude to the friend who relentlessly publicised her case and pressured US authorities. Kate Green reports.