Several aspects of the manifestation of the causality principle in LQP (local
quantum physics) are reviewed or presented. Particular emphasis is given to
those properties which are typical for LQP in the sense that they do go beyond
the structure of general quantum theory and even escape the Lagrangian
quantization methods of standard QFT. The most remarkable are those relating
causality to the modular Tomita-Takesaki theory, since they bring in the basic
concepts of antiparticles, charge superselections as well as internal and
external (geometric and hidden) symmetries.Comment: 11 pages tcilatex. This is a condensed version of material prepared
for, and submitted to proceedings of the symposium entitled ``New Insights in
Quantum Mechanics-Fundamentals, Experimental Results and Theoretical
Directions'' Goslar, Germany, September 1-3, 199
