Once again, the inestimable National Security Archive (NSA) has created a timely and useful electronic briefing book with declassified documents that shed light on recent events. In this case, the event is the accidental shoot down of a civilian aircraft carrying missionaries in Peru on April 20. The site offers the full text of thirteen declassified documents from 1994 which shed light on internal debate within the Clinton administration over the decision to share aerial tracking intelligence with Peru and Colombia. The documents are preceded by an excellent concise introduction, and for each, a one-paragraph summary is provided.