In his article Professor Giannelli articulates quite clearly the confrontation issues that arise when the government seeks to introduce scientific evidence testimony in a criminal case." His work is helpful to our understanding of the problems that develop in the limited contexts of expert testimony and laboratory reports. It also provides valuable insights into the relationship between the Confrontation Clause and the hearsay rules. However, perhaps most important is the contribution that he makes to our understanding of the right of confrontation and our attempts to define that right and its limitations. While I find myself to be in general agreement with Professor Giannelli, some of his conclusions do, in my opinion, deserve comment.