they had to launch way earlier than planned which was the big issue since they passed a jap fishing boat that was probably playing picket ship. added a bunch of miles onto the trip. 30 seconds over tokyo is a p short autobiographical read from a crewman's POV, i remember my public school had a copy in the library i read back in the day

back then it was regarded as a purely propaganda victory but some of the newly translated into english jap stuff suggests a lot of resources subsequently got diverted from the chinese, aleutian and SEA theaters to cover japan to avoid a repeat, so it may have done a lot of good really