Originally Posted by
Beckles

That was actually why I posted a link to Delta's map of LAX, it doesn't appear to me security would be a factor in a domestic to domestic connection, but then again that assumes Delta's terminal map is accurate ...

Security is indeed never a factor on a Delta-Delta or Delta-Alaska domestic (or domestic-international) connection at LAX, and the longest possible walk between gates on the two airlines is about 10 minutes; all the gates in T5 are within a 3-4 minute walk of each other (if you walk quickly).
However, for a DL-VA connection (or any interline connection that involves clearing security or an airside transfer bus), 70 minutes would be cutting it quite close. I have missed an AS-VA connection when my (delayed) AS flight landed in T6 60 minutes before VA's scheduled departure.