Please make the Metric System, International System of Measurements, the mandatory system in the United States. Also please introduce 24 hour time and day month year as normal mandatory standard.
US is the only one stubborn country in the world that continue to use anachronistic and inconvenient Imperial System. Now it is US customary system which makes even more mess.
It is shame for the country! Now it's 2013. 21st century already. Most of the world use convenient Metric System.
We have to change the US for the better after all as soon as possible.