Jack Smith IV, senior writer for Mic, on American nationalism and White Supremacy.

Stephanie DeGooyer, Fellow at Radcliffe Institute for Advanced Study on authoritarianisim

Daniel Dale of the Toronto Star on fact-checking President Trump and covering activism

David Nevins of the Bridge Alliance, talks about reversing America's political disunity.

Democracy Works’ Kathryn Peters on election security, voter registration and democracy.

Steven Olikara, founder of the Millennial Action Project on activating the next generation

Dr. Alan Stern and Dr. David Grinspoon on their book on Pluto: “Chasing New Horizons.”

" Investigative reporter Julia Angwin on exposing technologies that injure society. "

Oren Harman on his new book “Evolutions: 15 Myths That Explain Our World."

Leslie Berlin of Silicon Valley Archives at Stanford, on “Troublemakers: Silicon Valley’s

John Lawrence, former Chief of Staff to Nancy Pelosi, on his book “The Class of ’74”.

Founder and director of Belt Publishing Anne Trubek on “Voices From the Rust Belt.”

Investigative reporter Katherine Eban on generic pharmaceutical manufacturing dangers.

David Carroll of Parsons School of Design on privacy, media, and suing Cambridge Analytica

“Good Germs, Bad Germs” author Jessica Snyder Sachs on the rise of drug resistance.