[ I rather like a 10% Flat Tariff on all imported goods.
Why? Do you mean adding this tax on top of the flat tax, or this tax instead of the flat tax? ]
No as the ONLY federal “Tax” replacing all others and capped at 10%.
In 2013, total imports were $2.756586 trillion dollars. 10% of that is $275 billion. Our Congress would spin through that in a couple of months. US military spending alone in 2009 was $283.3. Seems to me you either need to make MASSIVE cuts in federal spending, or figure out a new revenue source.