evidence: In 2012, analyses of the chemical trails have verified the presence of radioactive barium, aluminum, radioactive thorium and cesium, copper, titanium, silicon, lithium, cobalt, lead, ethylene dibromide and several pathogens. The question was whether the Commission was aware of the health effects of these chemical sprays (E-002906/2012). [...] In general, publications showed that chemical trails would appear to be very rich in aluminum, barium and strontium, in the form of nanoparticles, with a strong predominance of aluminum [5, 60], [61], [62], [63]. Note also that for enhancing/refracting radar and radio signal communications, military already uses atmospheric barium spraying [64, 65].