Three things to know from this week:
1.. Jennifer Klein, professor of history at Yale, lets us in on Medicare's bumpy, challenging backstory.
2.. That's according to author - and former Microsoft exec - Kentaro Toyama, who explains why technology is not always the answer.
3.. Micah Sifry, co-founder of Personal Democracy Media, explains why technology hasn't lived up to its promise - and why he's still hopeful.
This week's music: