Source: the White House sent a "records retention policy" to DOGE staffers on Monday, reminding them to preserve their Signal messages and disable auto-delete (Kyle Cheney/Politico)
https://www.politico.com/news/2025/03/27/white-house-doge-signal-records-00254122
http://www.techmeme.com/250327/p37#a250327p37