The Source

Monday - Thursday from 3-4 p.m. on KSTX

The Source is a daily, one-hour call-in talk program that gives listeners in San Antonio the opportunity to call and connect with our in-studio guests and city-wide audience.

The Source seeks to give life, context and breadth to the events and issues affecting San Antonio by bringing newsmakers and experts to the public, and highlighting the people being affected by the news of the day.

Tune in to The Source for insightful discussion and analysis on topics that matter to residents of the Alamo City.

Support for The Source comes from contributors to the Community Engagement Fund, including The Gladys and Ralph Lazarus Foundation.

Contribute to the conversation:

Got an idea for a show or want to suggest a must read? CLICK HERE 

Be sure to note if you have extensive experience or expertise on a particular show topic and include your phone number as we may call you for more information on your comment or story.

Jonathan E. Shaw

Nowhere in the world is the impact of climate change more profound than the world's polar ends. Antarctica may not get the kind of media attention that polar bears of the Arctic do, but the impact of climate change to the biology of the South Pole is increasingly harsh, and that doesn't account for the vast changes in  ice levels and geography.

Chris Eudaily / TPR News

Wurzbach Parkway has been under construction for almost 35 years--and now it's finally ready. Eastbound lanes opened last week and westbound lanes will become available on Wednesday. 

The highway offers another option for commuters trying to avoid traffic congestion on Loop 410 and Loop 1604. Connecting Interstate 35 and Interstate 10, the parkway is expected to accommodate 40,000 cars a day

City of San Antonio

Late last year, San Antonio City Council heard an ambitious plan that would have added millions in tax revenue, tens of thousands of residents,  and 66 square miles to the city by annexing five surrounding areas. It would have been the largest addition in 20 years.

National Institutes of Health /

This weekend the University of Texas Health Science Center will host the Texas Biomedical Institute, the American Society for Biochemistry and Molecular Biology, UTSA, and others for a symposium on how to get scientists to explain tough science to a general audience.


  • Teresa Evans, Director of the office of Career Development at the University of Texas Health Science Center
  • David Weiss, Dean of the Graduate School of Biomedical Science at the University of Texas Health Science Center
Jonathan Thorne

Last night, the GOP presidential field debated their views on many issues, but again and again the idea of constitutional changes came up.

Birthright citizenship, increasing state rights, and reigning in the Judicial and Executive branches all were focal points of the conservative debates. 

What would it take to change the constitution? What would you change?