On November 8, 2016, Walgreens announced it was suing Theranos for $140M. Open access coverage at Reuters, here. Wall Street Journal report, here.
Walgreens requested the case be filed under seal, as it involved mutually confidential agreements ("Theranos could claim we breached the NDA"), here.
Update:
Further news; PDF of complaint; Mattis board member.
November 15, 2016
"Walgreens Trashes Theranos in Their Fiery $140M Lawsuit Battle."
Fortune. By Sy Mukherjee. Here.
Redacted Walgreens Complaint (52pp), here.
Theranos board member James Mattis met with President-elect Trump the weekend of November 19; here; for discussions related to military and national security. Mattis was named to Defense Secretary on December 1 (here).