Psychological profiling is the process of identifying certain psychological traits and specific behaviors in criminals and terrorists. This method is one of the tools used in homeland security. The government may use this technique in various ways. For example, such agencies as the FBI or CIA can develop various profiles that can be used to locate those who have committed some kind of violent crime (or a terroristic attack) or to identify a potential attacker or criminal (Bartol & Bartol, 2014). Officers of different agencies are trained to identify certain behaviors and pay closer attention to some individuals (White, 2013). For example, in airports or during some important venues, officers may detect such people and ask them to answer a number of questions or undergo some search procedure (Johnson, 2016). Moreover, analyzing people’s communications (emails, phone calls, and so on), the government also tries to identify potential terrorists. Profiling is quite a viable tool as it provides officers with important information concerning the criminal or terrorist. These profiles are developed on the basis of the data collected during the investigation (Barrow, Rufo, & Arambula, 2013). These data include behaviors, information concerning physical appearance, background, and so on. It is important to note that the information about criminals who have been arrested and interrogated is taken into account. Clearly, responses and behaviors of criminals exhibited can be used to identify a person who has committed a similar crime, under similar conditions. However, profiling may also involve some generalizations, which is one of its major flaws (Gabbidon & Taylor Greene, 2012). These generalizations may lead to erroneous conclusions and biased attitudes towards certain groups. Rigoglioso (2014) notes that the life of Muslim people in the USA has become more difficult as they are under constant watch due to the association of terrorism with Islam. Of course, Arabic people are also regarded as potential terrorists, which often causes inconveniences for these people. Nonetheless, homeland security benefits from the use of psychological profiling as this technique has shown positive results and many cases have been solved with the help of this method (Barrow et al., 2013). Apart from the stage of the investigation, it is possible to add that psychological analysis is central to the domain of defense. For instance, such aspects as competency, insanity and various psychological syndromes can become the central point in an individual’s defense strategy. This aspect can become vital for the defendant as the court takes into account these psychological states. As has been mentioned above, the government uses a variety of methods to enhance domestic security, but these measures often violate citizens’ liberties. For example, the use of cameras and the unlimited access to people’s communications (emails, phone calls) or even their devices pose major threats to people’s right to privacy. The US Constitution is violated as the government often uses unreasonable seizures and searches especially when it comes to the digital world (Rigoglioso, 2014). To address this issue, the government should make s