Just when I thought it couldn't get any worse...have "they" been spraying something into the atmosphere to weaken our immune systems?

Does this have anything to do with the H1N1 swine flu hysteria?

Barium and arsenic, both toxins, are two of the substances identified raining down from chemtrails created by aircraft. Small amounts of water-soluble barium may cause a person to experience breathing difficulties, increased blood pressures, heart rhythm changes, stomach irritation, muscle weakness, changes in nerve reflexes, swelling of brains and liver, kidney and heart damage.

Exposure to inorganic arsenic can cause various health effects, such as irritation of the stomach and intestines, decreased production of red and white blood cells, skin changes and lung irritation. It is suggested that the uptake of significant amounts of inorganic arsenic can intensify the chances of cancer development, especially the chances of development of skin cancer, lung cancer, liver cancer and lymphatic cancer.A very high exposure to inorganic arsenic can cause infertility and miscarriages with women, and it can cause skin disturbances, declined resistance to infections, heart disruptions and brain damage with both men and women.Finally, inorganic arsenic can damage DNA. A lethal dose of arsenic oxide is generally regarded as 100 mg.

Contrails are created by jet exhaust, they usually dissipate within a few minutes.

Chemtrails are created by aircraft spraying materials in to the atmosphere, these last for several hours and increase in area as time passes.