@article {12070, title = {The price of safety in an active network}, journal = {Journal of Communications and Networks}, volume = {3}, year = {2001}, month = {2001///}, pages = {4 - 18}, author = {Alexander,D. S and Menage,P. B and Keromytis,A. D and Arbaugh, William A. and Anagnostakis,K. G and Smith,J. M} }