[IndianaJones]

We've lived here 5 years - I just finally retired. Got up in the attic to start cleaning stuff out, found this. Truss is completely split - you can see the remaining shards, and apparently they scabbed on a 4' piece of 2x4 (yep, that's the length of the scabbed board). Obviously this was missed on inspection (had what I thought was a thorough inspection, plus 2 different roof inspections). House is 16 years young. Questions"
1) Is this okay?
2) Okay to scab a second 10' 2x4 onto the other side and lag bolt them together?
3) Or should I call a structural engineer to take a look?

Thanks in advance for any answers.