Lewis and clark were on an expedition
Slaves worked for free and had to do all hard labor that they were told to do.
Yellow journalism was and is very common in the US. One example of yellow journalism was when newspapers pushed the US and Spain into war in 1898.
It would help the nation focus on pressing problems.
Unlike the trade routes of the the classical era, the Internet does not limit the extent to which items can be traded in a certain network--meaning that things can be traded between practically any two locations on the globe with an internet connection.