I find it interesting that insurance companies will now cover medical marijuana under their benefits schedule, yet these very same insurance companies also have a clause in their life insurance portion of their benefit plan stating that your life insurance will be NULL AND VOID should cannabis be detected in a body during any autopsy that may or may not be performed after an insured person's death.
This definitely needs to be looked into, and as a matter of fact, changed ..... as it seems discriminatory at best, and just wrong at its worst. 
Medical marijuana users would be wise to check through their benefits schedule to see if indeed this includes them. Why should a spouse have to pay so dearly for the fact that their loved one was ill?