In an interview Sunday, President-elect Donald Trump said he would not be bound by the United States's longstanding "one-China" policy, and he dismissed U.S. intelligence concerns about Russian interference in last month's election.

Republicans on Capitol Hill also began questioning Trump's possible choice of Exxon Mobil CEO Rex Tillerson to be secretary of state, because of Tillerson's ties to the Russian government.

Security analyst Jim Walsh (@DrJimWalshMIT) joins Here & Now's Jeremy Hobson to discuss the national security implications of Trump's cabinet picks, as well as the president-elect's remarks about China policy and Russian hacking.