1. Cocaine use is increasing, with crack cocaine gaining popularity among some marginal groups . 2. Measures protecting these marginal groups from gentrification may reduce those. 3. The tension between the races is fueled by competition between economically marginal groups , Roy said. 4. Lao Theung are socially, economically, and politically the most marginal group of the three ethnic classes. 5. However, the new PPS remains a marginal group within the political landscape of the Third Republic. 6. Conservative criticism of OWS has sometimes been vitriolic, casting the demonstrators as a thoroughly marginal group . 7. "' Conservative criticism of OWS has sometimes been vitriolic, casting the demonstrators as a thoroughly marginal group . 8. We now have to recognize non-mainstream and marginal groups that in the past used to be taboo. 9. "The authorities'inaction has encouraged marginal groups ." 10. Finnish historian and Russia-expert Arto Luukkanen considered the protest as an attempt by a marginal group to get publicity.