This was 2003; over five years ago. Shortly after announcing the closure of the LifeLog product, the DOD/DARPA had no observable link to the launch of Facebook, in February of 2004. There remain to be no clear evidences of DoD or other state-level agencies interacting with, concerned with, nor immersed within the most significant set of social technologies to date, now, in 2022, nor could any reasonable motivation be corroborated with factual observation.
Hard to find the original page for LifeLog, DARPA is probably pretty good at scrubbing from Arhive.org but I don't recall Aspx running on .html in 2003
https://web.archive.org/web/20040215000000*/http://www.darpa...
https://users.ece.cmu.edu/~adrian/630-f03/lifelog.html
https://web.archive.org/web/20030618163435/http://www.silico...