Organized opposition to activities - whether by professional or commercial interests - was cited by some respondents as a major constraint. This may be very difficult to counteract although open dialogue with some groups can contribute to a more neutral approach. Such opposition can be subtle and not conducted through public debate. Support from international agencies and from international and national networks can be vital in providing a counterweight to organized opposition. Support from the media has proven to be highly effective in a number of national RUD consumer campaigns. However, media support in some countries may be difficult to obtain in an area of considerable political and commercial sensitivity. Reported experience from other countries can be useful in helping to diffuse or partially neutralize organized opposition - the more mainstream, recognized and reported public education activities become the easier they will be to promote and defend.