Middle Eastern ethnic groups being picked for extra screening in airports.
Highest arrest rates for African Americans and Hispanics.
Female politicians being judged for their looks and/or age when men are not.
Prejudice is common as all people hold some form of prejudice (pre-judgment) against a group or groups of people. These are not always easy to pinpoint because it doesn't always present as discrimination as the examples I have given you are--they are acting on the prejudice.