Partial Birth Abortions are a type of abortion performed in the mid to late second trimester. They are a hot button topic because they are particularly brutal. The BAN, however, goes beyond just partial birth abortions and bans abortions in the second trimester all together. Many people who are pro-choice are upset about this because birth defects can not be detected until the second trimester. So if it is determined that the child has a particularly fatal birth defect they can not be aborted and the mother just has to wait until the fetus dies.