Would Jefferson today be permitted to express publicly his views on shays rebellion?

Yes, Thomas Jefferson would be permitted to express his views on Shays' Rebellion today, as the First Amendment of the U.S. Constitution protects the right to free speech. This includes the ability to discuss and critique historical events, even controversial ones. Public discourse on past uprisings like Shays' Rebellion is essential for understanding American history and its implications. However, the context and perspective would likely differ significantly from his time.