As more tech companies sever ties with Russia, could it face being cut off from the web? We also hear how tech workers around the world are helping people in Ukraine.

This week’s guests are Olha Svyripa, a Ukrainian woman working for a software development firm; Andrew Pavliv, chief executive of one of Ukraine's largest IT firms; Abishur Prakash, a geopolitical futurist; and Emerson T. Brooking, co-author of The Weaponization of Social Media.