From the about page:
In 2013, we suspended service to protect our global customers when the U.S. government ordered us to release our Transport Layer Security private keys. To protect your digital privacy and freedom, we said no.
In 2014, we began development of the Dark Internet Mail Environment —DIME—a revolutionary end-to-end encrypted global standard...
Do they imply that 2013 can't happen again? Are there less risks now (regarding government orders)?