Gravity is responsible for their round shape..
One consequence was increased public attention to the nature of the Social Security Trust Fund..After all, the C of E doesn't really propagate it much..There are four modes Story, Battle, Vs, and Traning..
In a crowded channel environment this means that the power of regional channels which share a frequency must be reduced at night or directionally beamed in order to avoid interference, which reduces the potential nighttime audience..
American hatred of freedom, for example, shows up quite clearly in the statistics of public attitudes toward the Bill of Rights..