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Houston Matters begins at 9 a.m. CT on 88.7FM. You can also listen online or watch live on YouTube. Join the discussion. Call or text 713-440-8870. Email talk@houstonmatters.org or tag us @HoustonMatters.

On Thursday’s show: Houston Mayor John Whitmire and Houston Police Chief Noe Diaz have announced revisions to the department’s protocols for engaging with Immigration and Customs Enforcement. We learn what’s changed and why.

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Also this hour: Seeking out a spring break-appropriate trip into nature within a day’s drive? We visit Lake Houston Wilderness Park to learn more about it.

Then, we get answers to some questions about pharmaceutical drugs. For example, when you’re sick, how can you tell the difference between a symptom and a drug interaction? We ask a pharmacist about safer medication habits.

And we discover what a new photo exhibit called Between Borders has to show us about the war in Ukraine — and the unlikely organization hosting the exhibit.

Audio from today’s show will be available after 11 a.m. CT. We also offer a free podcast here, on iTunes, Stitcher and other apps.