Christianity Today has a short article recapping the situation with Missouri Baptists: Brewing Battle. Nothing terribly new or informative to those who have been keeping up, but concise with some helpful external links at the end for those needing to catch up.
The policy addresses an ongoing SBC debate. Baptists have championed alcohol abstinence since the late 1800s, but a growing number want the SBC to reexamine the issue, said Timothy George, dean of Beeson Divinity School.
"There is growing discontent, people saying that we shouldn't be mandating things that aren't spoken clearly about in Scripture," George said. "It's hard to argue that the Bible requires total abstinence."