Haha! You can't really be serious!
A great firewall of America?
Bribery as fairly standard practice in business.
Pushing away other countries from your economy.
America does not have a firewall, but they do have means to stop certain things from circulation. A great example is ISIL video. It is expunged from Youtube and Facebook and other social media platforms - Twitter is compelled to delete accounts of ISIL members. The US uses mass social media propaganda to countermessage the ideas of ISIL (http://minerva.dtic.mil/doc/samplewp-Lieberman.pdf).
This not being the only target, there are ways that the US engages with ideas (look up Cass Sunstein's Nudge and work on cultural persuasion) and Air Force social engagement flowcharts.
Bribery in the US is composed on tacit agreements, shared interests and possible financial reprisal. It is subtler but not difficult to call for what it is. In business, agreed. It's there and sometimes in places the US isn't interested in intervening. But it isn't ubiquitous.
The US applies sanctions and embargos, abuses its Export-Import Bank and connections with the World Bank and IMF, and fixes political situations - aren't we in a TPP thread? - with economic warfare. You can't buy salmon in the Eastern tip of Russia right now. The US also hauses tariffs to compete with other nations' industries (cars, sugars, ...).