PR trade newsletter The Holmes Report credits good public relations as part of the nuclear industry's come back, noting that ongoing campaigns in Washington DC have been very successful in winning the support of opinion leaders. Companies have also been active on the "grassroots" front. The Exelon Corporation, which owns almost one-fifth of the nation's 103 nuclear facilities, points to its open houses and media roundtables for building industry credibility. "Improved performance, concern over global warming, the perception of an energy crisis, and the industry's long, sustained public relations effort have combined to create an atmosphere in which the construction of new nuclear plants in no longer unthinkable," writes The Holmes Report.