[Alberta's Child]

The question was raised here in the context of a Japanese plan to bomb San Francisco. My point was that a balloon traveling several thousand miles across an ocean is hardly the kind of method one would use to carry out such a mission. You could have a near-perfect understanding of meteorology and launch 1,000 balloons every day from Japan -- and you would probably spend 500 years launching balloons without ever getting one to land in San Francisco.

[MeanWestTexan]

"The question was raised here in the context of a Japanese plan to bomb San Francisco."

Again, the baloons and the germ bombs were distinct and seperate plans.

See the picture of the combo sub/air-craft carrier japan had developed.