Parfomak, Paul W., <br/><br/>
Vulnerability of concentrated critical infrastructure :  background and policy options / 
Paul W. Parfomak. 
 - [Library of Congress public edition]. 
 - 1 online resource. 
 - 
 - Report / Congressional Research Service ;  RL33206 .
 - CRS report ;  RL33206. .
<br/><br/> The CRS report home page provides access to all versions published since 2018 in accordance with P.L. 115-141; earliest version dated [2008].  GPO Cataloging Record Distribution Program (CRDP). 
<br/><br/>Report includes bibliographical references. 
<br/><br/><label>LCCN: </label>2020231145 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply--Safety measures.--United States<br/>Power resources--Safety measures.--United States<br/>Roads--Safety measures.--United States
<br/><br/><label>GPO Item No.: </label>0807-A-07 (online) 
<br/><br/><label>Gov. Doc. Class. No.: </label>LC 14.23:RL 33206/