The idea of travel to other planets sells a lot of newspapers So the world goes wild with excitement!
Pledges of money come in from every nation! Everybody wants to get involved! It looks like we've solved the money problem... until we start to see full page attack ads aimed against us!
Somebody is paying a lot of money to tell people we will fail: the ads say a gun cannot be made that size without impurities in the iron, so it will break apart when the enormous quantity of explosive is ignited! The ad says that anybody who invests will be responsible for killing bystanders! And that the projectile will fall back to earth, killing anybody underneath!