Taiwan is a persistent sticking point in US-China relations

Taiwan is something of a "David" in its struggle to stay independent from "Goliath" that is mainland China. Support from the US has helped the island maintain that independence - though its commitments are "strategically ambiguous." Yesterday, the US president said he would be open to talking to Taiwan's president - which would be a major departure from the norms of that ambiguity. To learn more about the peculiarities of US-Taiwan relations, Host Marco Werman speaks to Isaac Stone Fish, a visiting fellow with the Atlantic Council and former Beijing correspondent.