Roswell & Manned Fugo Balloons

http://desertdarkness.blogspot.com/2012/01/john-keel-screaming-monkey-and-roswell.html

I've always found these two (possibly related) subjects of interest, and find Keel's stories of manned Fugo balloons to be on the edge of the possible.  I do know there were serious plans to have light Japanese bombers transported and launched from submarines in the Pacific, bomb the Texas oilfields and then crash land in the Gulf of Mexico, (with the pilots picked up by German u-boats).  But they could never quite pull off the logistics.  Suicide balloons would have been a much easier proposition, however, (I don't think a human could have made it all the way from Japan, as the non-manned balloons were handled).  I look forward to whatever Refern can dig up on this.