"The United States Department of Homeland's Security (DHS) is a cabinet department of the United States federal government, created in response to the September 11 attacks, and with the primary responsibilities of protecting the territory of the U.S. from terrorist attacks and responding to natural disasters. In FY 2010 it was allocated a budget of $42.7 billion and spent, net, $56.4 billion.
Whereas the Department of Defense is charged with military actions abroad, the Department of Homeland Security works in the civilian sphere to protect the United States within, at, and outside its borders. Its stated goal is to prepare for, prevent, and respond to domestic emergencies, particularly terrorism. On March 1, 2003, DHS absorbed the Immigration and Naturalization Service and assumed its duties. In doing so, it divided the enforcement and services functions into two separate and new agencies: Immigration and Customs Enforcement and Citizenship and Immigration Services. Additionally, the border enforcement functions of the INS, the U.S. Customs Service, and the Animal and Plant Health Inspection Service were consolidated into a new agency under DHS: U.S. Customs and Border Protection. The Federal Protective Service falls under the National Protection and Programs Directorate."
and to be sure no one watches movies or listens to songs without legal permissions.
n. in antitrust law, any activity (including agreements among competitors or companies doing business with each other) which tends to limit trade, sales and transportation in interstate commerce or has a substantial impact on interstate commerce. Most of these actions are illegal under the various antitrust statutes. Some state laws also outlaw local restraints on competitive business activity.
See also: monopoly trust antitrust laws
n. an attempt to prevent publication or broadcast of any statement, which is an unconstitutional restraint on free speech and free press (even in the guise of an anti-nuisance ordinance). Stemming from the First Amendment to the Constitution, the ban on prior restraint allows publication of libel, slander, obvious untruths, anti-government diatribes, racial and religious epithets, and almost any material, except if public security or public safety is endangered (false claim of poison in the reservoir or exhortation to commit a crime like a lynching) and some forms of pornography. The theory, articulated by the U.S. Supreme Court in Near v. Minnesota (1931) is that free speech and free press protections have priority, and lawsuits for libel and slander and prosecutions for criminal advocacy will curb the effect of defamation and untruths. Most other nations permit prior restraint by court order or police action when the material appears to be defamatory (hurtful lies), salacious (nasty), or "improper, mischievous, or illegal" (in the words of Sir William Blackstone).