post also sheds new light on other kinds of sensitive materials that were already recovered from trump's home back in january. the national archives first realized that important documents were missing, quote, a person familiar with the inventory of 15 boxes taken from mar-a-lago in january indicated that signals intelligence material was included in them. the precise nature of the information was unclear. as the washington post notes and it's reporting, signals intelligence can include things like intercepted emails and phone calls of foreign leaders. there's a lot of information here. we will try to unpack a lot of it.