Texas Standard for June 20, 2016

Friendly fire: More than 50 U.S. diplomats sign a memo of dissent demanding a shift in Syria. We’ll explore the implications. Also: Teachers face police in a standoff on a highway. The result: Six teachers killed in Oaxaca. We’ll hear what’s behind the protests. Plus: An offer to the LGBT community in Houston takes an unexpected turn, as hundreds sign up for gun classes. And: More than a dozen police officers are on mandatory leave, amid an investigation into false reports of traffic stops. Is a culture of quotas to blame? Those stories and much more, today on the Texas Standard.