With etymological origin in the Latin word I will expose, the term expose make reference to express or exhibit something . It's about a verb which, based on this meaning, can be used in different ways and in different contexts.

For example: “My dream is to exhibit my paintings in a gallery in Paris”, "The government is considering exposing debtors to incentivize payments", “The owner of the channel does not want to expose the difficult situation that cross many neighbors since the images could harm the mayor ”.
The idea of exposing frequently appears in the field of plastic arts . When a painter, a sculptor or a photographer decide to exhibit their works, what they do is display them somewhere (a gallery, a museum, etc.). By exposing, therefore, the artist makes known his work.
Exposing may also involve give a speech or speak in public about certain topics. Oral exposures are frequent in the science and in the academic field when a specialist offers a conference or a dissertation. Suppose that, in a university, it is announced that an economist will expose a country's foreign debt. It is expected that, in the event in question, the expert will explain issues related to this topic.
In this sense, the verb expose usually indicates that whoever does it makes its own known discoveries , opinions or points of view regarding a topic. This differs from the action of sharing with a group of people a series of knowledge that comes from the work of others, something very common in schools when students must learn about a topic based on the reference books indicated by teachers and then show them that they have internalized the concepts properly.
Note that the meanings mentioned so far refer to actions carried out by the subject without directly harming or affecting a third party; in fact, they usually have as their objective the benefit of making their skills personnel to get jobs or to sell their creations.
On the other hand, the concept of exposing can also refer to placing someone or something in a position dangerous or harmful or in a place where you can receive the influence of an agent: "I will not expose my son to TV cameras", “You must wear a special suit to enter the laboratory because you can be exposed to radiation”.
This meaning is very valid today, given the ease with which we can publish information in Internet . While in the past it was necessary to go a long way to expose, for example, the bad behavior of a company, since it was necessary to get some television or radio network, or a newspaper to show solidarity with the victim and grant him A space to make your complaint public, today it is enough to upload photos, videos or a text to any social network so that worldwide dissemination begins.
In case of lack of ethics , Internet is the most appropriate channel: every day there are fewer people who dare to cross the line of good without thinking twice, since there is probably a mobile phone or a security camera nearby keeping a capture of the scene. Discussions in the means of transport, street fights or theft of products sent at home, among many other situations are videotaped and published every day on networks throughout the world, facilitating the work of the security forces and condemning to criminals to the maximum degree of exposure.