Leeches, 4th Grade, Critical Thinking and Data Leeches, 4th Grade, Critical Thinking and Media Data by Kevin C. Killion President, Stone House Systems, Inc. It is my pleasure to introduce the panel representing views of the agencies.
Agencies are at the center of the media exchange.
Sure, they are tightly involved with their clients. But they also have a very close relationship with suppliers and media vendors to the point that their have been legal issues raised at moments in the past over the issue of who exactly was the agent for whom. This central focus makes agencies singularly influential in deciding the kinds of research and the kinds of data streams that will become available. Leeches and Medicine First, let's talk about leeches. You all know that at some point in history the practice of bloodletting using leeches was a preferred medical procedure for illnesses with high fevers.