The Silicon Valley company's plan to spin off its $24bn stake in Alibaba suffered a second major setback this week when the IRS, the US tax authority, said it had serious concerns about deals similar to the one proposed by Yahoo. Aimee Keane speaks with San Francisco correspondent Hannah Kuchler about the authority's statement and what effect it could have on the potential spin-off. For information regarding your data privacy, visit acast.com/privacy