corporate taxes in the US are some of the highest in the world...
Yup..
Examples of corporate tax rates for a few English-speaking countries include:
Australia: 30%, however some specialized entities are taxed at lower rates.[12]
Canada: Federal 11% or 16.5% plus provincial 1% to 16%. Note: the rates are additive.[13]
Hong Kong: 16.5%[14]
Ireland: 12.5% on trading (business) income, and 25% on nontrading income.[15]
New Zealand: 30%
Singapore: 17% from 2010, however a partial exemption scheme may apply to new companies.[16]
United Kingdom: 21% to 26% for 2009–2011.[17]
United States: Federal 15% to 35%.[18] States: 0% to 10%, deductible in computing Federal taxable income. Some cities: up to 9%, deductible in computing Federal taxable income. The Federal Alternative Minimum Tax of 20% is imposed on regular taxable income with adjustments.
However...
http://www.nytimes.com/2011/05/03/business/economy/03rates.html