Julian Assange's Twitter account is back, but the mystery remains

UPDATED Dec. 25, 2017, 11:04 a.m. ET It's back now.
With little fanfare and zero explanation, Julian Assange's Twitter account reappeared on Monday morning. It's a Christmas something-or-other.
The WikiLeaks founder has tweeted two times since his account came back online, though neither one addresses the reason for the disappearance. One tweet features a cartoon of Santa Claus adding WikiLeaks to his "Nice" list as he stares at the organization's Wikipedia entry. The other is a request for dona