[Abathar]

"Federal investigators said the device was rendered safe and that the area was checked for additional devices. No other devices were found. The device was described as a one-inch-by-one-inch pipe bomb."

I was reading another article and came across the 1"x1" pipe bomb and had to chuckle, I've had firecrackers bigger than that.

[FourPeas]

The newsok article linked above says it was a 12” by 12” pipe bomb. I wonder which reporter got it wrong.