The Vermont Service Center issued a request for additional evidence. It requested evidence to establish that the client would play a significant role in his field which will prospectively benefit the United States. Merely working in an area of expertise, according to the INS notice of action, was not sufficient. The article reported the occurrence of an inordinate number of damaged sperm and decreased levels of sperm density in males throughout the world. This had caused some scientists to speculate whether the human species was approaching a fertility crisis.
Unhealthy sperm fail to penetrate the membrane, resulting in infertility.
The article stated that possible etiological factors for the decrease in sperm density and motility are environmental or occupational pollutants linked to the widespread growth of modern industry. Estrogens are also present in poultry, cosmetics, skin lotions, hormonal pills and various other consumer products. Use of or exposure to these environmental agents are suspected to be the leading cause of decline in sperm density and irregular sperm. Some researchers also maintain that fetal exposure to environmental toxins are the main cause of low sperm density and irregular and sluggish sperm. The article also stated that Andrology, the study of male reproductive disorders remains a new and small field, was largely populated by doctors who were trained as gynecologists.