Interesting post in SCOTUS blog about arguments before US Supreme Court regarding state law prohibiting defendant from introducing evidence of racial bias within the jury deliberation process.
http://www.scotusblog.com/2016/10/argument-preview-justices-to-consider-racial-bias-in-jury-deliberations/
http://www.scotusblog.com/2016/10/argument-preview-justices-to-consider-racial-bias-in-jury-deliberations/