Scary things. Ultrasounds may cause minor brain damage to unborn babies, particularly boys. Increased left-handedness, minor speech delays, other "minor" issues. Vaccines may or may not be linked to disorders like autism. Aspartame, lead paint, insect repellant. We advance, we pull back. We help, we harm.

I have three left-handed kids, one who had early speech issues. One had a bad vaccine response.

There are new whiz-bang products every day. Antibiotics fed to cattle. Antibacterial soap. Acne medications. Vaccine series that start now before the infant leaves the hospital. We try them, all of us, we humans.

I wonder if I have enough room on this plot of land to build that bunker.