The application of the label is being rapidly extended. Building materials are now in many large cities under label domination. In Chicago the bricklayers have for over fifteen years been able to force the builders to use only union-label brick, and the carpenters have forced the contractors to use only material from union mills. There is practically no limit to this form of mandatory boycott. The barbers, retail clerks, hotel employees, and butcher workmen hang union cards in their places of employment or wear badges as insignia of union loyalty. As these labels do not come under the protection of the United States trade-mark laws, the unions have not infrequently been forced to bring suits against counterfeiters. Finally, in their efforts to fortify themselves against undue increase in the rate of production or "speeding up," against the inrush of new machinery, and against the debilitating alternation of rush work and no work, the unions have attempted to restrict the output. The United States Industrial Commission reported in 1901 that "there has always been a strong tendency among labor organizations to discourage exertion beyond a certain limit. The tendency does not express itself in formal rules. On the contrary, it appears chiefly in the silent, or at least informal pressure of working class opinion." Some unions have rules, others a distinct understanding, on the subject of a normal day's work, and some discourage piecework. But it is difficult to determine how far this policy has been carried in application. Carroll D. Wright, in a special report as United States Commissioner of Labor in 1904, said that "unions in some cases fix a limit to the amount of work a workman may perform a day. Usually it is a secret understanding, but sometimes, when the union is strong, no concealment is made." His report mentioned several trades, including the building trades, in which this curtailment is prevalent. The course of this industrial warfare between the unions and the employers has been replete with sordid details of selfishness, corruption, hatred, suspicion, and malice. In every community the strike or the boycott has been an ominous visitant, leaving in its trail a social bitterness which even time finds it difficult to efface. In the great cities and the factory towns, the constant repetition of labor struggles has created centers of perennial discontent which are sources of never-ending reprisals. In spite of individual injustice, however, one can discern in the larger movements a current setting towards a collective justice and a communal ideal which society in self-defense is imposing upon the combatants. CHAPTER IX THE NEW TERRORISM: THE I. W. W.