One of the major issues facing the Episcopal Church at its General Convention is marriage equality, providing access to all of the sacraments for all of God's people. Integrity USA has created a wonderful 10-minute video that you can watch here, describing the importance of marriage equality.
Note: I was part of the team that secured initial funding from the Arcus Foundation, which made production of this video possible. And the couple from Missouri featured in the video had their civil marriage blessed at St. John's. What a joy to see the fruit of our labor!