This Thursday, Congress will hear from three top experts, and three of the primary manufacturers (ES&S, Hart InterCivic, and Dominion Voting Systems), of voting systems.  This is apparently the first time the top executives of all three companies have testified together.

And Wednesday, Facebook is back on the Hill for a hearing on online manipulation and deception.  (Here’s a staff memo as background for the hearing.)

Here’s hoping for some informed follow-up questions.