Mere distribution of a letter during executive session without discussion does not violate FOIA, though the letter itself is an official record subject to disclosure upon request.
Industrial authority may hold closed meeting to discuss prospective business relocations provided there has been no prior public announcement about the business' intention to locate in the area. Duty is to create access to records/meetings, not to proactively release information.
Once a board is in executive session for an enumerated reason, it may not discuss other non-related matters but must hold a public meeting for the discussion of such matters.