Though allies, the US and UK struggled to collaborate on the building of the atom bomb during World War II. In hopes of spurring cooperation, members of the UK’s bomb program—which was inconspicuously codenamed “Tube Alloys”—sent a report on their research to US scientists. The report was largely ignored until one of the British scientists traveled to the US. Hesitation by both sides followed, and the fledgling US effort eventually became the Manhattan Project. What happened to Tube Alloys? Discuss