Deportation is defined as the removal or expulsion of a foreign national already in the United States, whether legally or illegally.
Exclusion is the rejection of admission of an immigrant trying to enter the country.
The potential to become a public charge Illegal immigrants or immigration violators, entrants who do not have proper documentation and anyone ineligible for U.S. citizenship are also vulnerable to removal. The INS will waive removal in certain circumstances. If you fall into any of the grounds for removal categories above and wish to learn whether you may qualify for a waiver, contact an immigration attorney. Aliens who try to enter the United States with either fraudulent, improper or no documentation are at risk for expedited removal. When a foreign national arrives at a border and is identified as a candidate for expedited removal, the INS will investigate him or her.