It actually is. It's a fundamental human right under the European Convention on Human Rights (to which Switzerland is a party) , Art. 10:
"ARTICLE 10
Freedom of expression
1. Everyone has the right to freedom of expression. This right
shall include freedom to hold opinions and to receive and impart
information and ideas without interference by public authority
and regardless of frontiers. This Article shall not prevent States
from requiring the licensing of broadcasting, television or cinema
enterprises.
2. The exercise of these freedoms, since it carries with it
duties and responsibilities, may be subject to such formalities,
conditions, restrictions or penalties as are prescribed by law and
are necessary in a democratic society, in the interests of national
security, territorial integrity or public safety, for the prevention
of disorder or crime, for the protection of health or morals, for
the protection of the reputation or rights of others, for preventing
the disclosure of information received in confidence, or for
maintaining the authority and impartiality of the judiciary."
"ARTICLE 10 Freedom of expression 1. Everyone has the right to freedom of expression. This right shall include freedom to hold opinions and to receive and impart information and ideas without interference by public authority and regardless of frontiers. This Article shall not prevent States from requiring the licensing of broadcasting, television or cinema enterprises. 2. The exercise of these freedoms, since it carries with it duties and responsibilities, may be subject to such formalities, conditions, restrictions or penalties as are prescribed by law and are necessary in a democratic society, in the interests of national security, territorial integrity or public safety, for the prevention of disorder or crime, for the protection of health or morals, for the protection of the reputation or rights of others, for preventing the disclosure of information received in confidence, or for maintaining the authority and impartiality of the judiciary."