Whatever the President-elect might say on the matter, the question of Russian interference in the presidential election is not going away: calls continue in the Senate for an investigation into the Kremlin's meddling, and the security firm Crowdstrike recently released new information linking one of the two entities responsible for the DNC hack with Russia's military intelligence agency. So how should the United States respond?

In War on the Rocks, Evan Perkoski and Michael Poznansky recently reviewed the possibilities in their piece, "An Eye for an Eye: Deterring Russian Cyber Intrusions." They've also written on this issue before in a previous piece titled "Attribution and Secrecy in Cyber Intrusions." We brought them on the podcast to talk about what deterrence of Russian interference would look like and why it's necessary.