Here is a reading on Glasnost along with its accompanying vocabulary-building and comprehension worksheet. As I was a Russian and Soviet Studies student at both the undergraduate and graduate level, I can tell you that this one-page reading, from the Intellectual Devotional series, does justice to the topic.
Incidentally, the Russian word root glas means “voice.” So, while one popular definition of glasnost is “openness,” it also means, as this definition from Merriam-Webster’s connotes, the freedom to use one’s voice to discuss previously circumscribed or forbidden topics.
If you find typos in these documents, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.