---

• n  an informant who is not assigned to obtain specific intelligence but who routinely passes on whatever information he or she has

News & Articles

---

• The Scientist: Prof. Katie Keranen Explores Motion Behind Earthquakes
  By JACQUELINE CAROZZA When the earth moves, Prof. Katie Keranen, earth and atmospheric systems, watches. Keranen images the Earth’s crust by studying the propagation of energy waves through rock, a field known as seismology. The sources of these waves are subdivided into two categories: natural or passive sources, such as […]
  Oct. 9, 2013 - The Cornell Daily Sun