Environmentalists' actions threaten safety of radioactive material transits, Valentin Ivanov, Russia's Deputy Nuclear Power Minister, has opined. He addressed a cabinet session Thursday reporting on measures being taken to ensure radioactive carriages security. By blocking the railroads, "the greens" provoke emergensy situations and accidents, claimed Ivanov. He then spoke out in favour of clearing up a related legislation. Not a single transportation accident has occurred in the USSR and Russia over the past 50 years, reported the deputy minister. The Nuclear Power Ministry insists that federal and regional laws should be harmonized, since some of the regions are known to ban the transit of radioactive substances via their territories, which runs counter to federal law. Apart from that, Ivanov deemed it necessary to specify a number of aspects relating to safe transportation.