The cases cited are picked at random out of a mass. They illustrate the breathing periods given to Germans who had been active under Bernstorff in disturbing America's peace and defying her laws. They serve also to illustrate the contrast between the methods employed by the United States, and those adopted by her Allies, from whom she has taken other lessons in the business of warfare. France gave alien enemies forty-eight hours in which to leave the soil of the country, and any such person found at large after that date was to be interned in a detention camp. To have interned all of the Germans in the United States would have been impossible and the Government took some time to find a second best method. By May 2 the Department of Justice was in a position to announce that it had plans for internment camps for three classes of aliens: prisoners of war, enemy aliens, and detained aliens, and it announced on that date there were some 6,000 in those classes already detained. By February 17, 1918, however, there were actually no more than 1,870 aliens interned under the war department and under military guard at Forts McPherson, Oglethorpe and Douglas, and some 2,000 at Hot Springs, North Carolina, in the Department of Labor's detention camp. At both camps the prisoners were fed and housed at the expense of the Government, and it was not until the early spring of 1918 that they were put to work. From April 6 to July 10, 1917, an enemy alien could be employed by any shipbuilder, tug-boat captain, lighterage firm or steamship line; he could go about any waterfront at will, provided he did not enter the so-called "barred zones" in the vicinity of Government military or naval property, and he could make unmolested such observations as his eyesight afforded of the shipping upon which the United States depends for its share in this war. After that date he was forbidden such employment, and denied approach to all wharves and ships. On July 9 the Government discharged from its employ 200 German subjects who for weeks past had been loading transports at the docks in an "Atlantic port." A raid on the Hoboken waterfront in the following winter rounded up 200 more enemy aliens who had calmly ignored the "barred zone" regulations. The Government was confronted with a stupendous problem. How to handle with its normal peace-time police force the great unwieldy flow of the alien population presented a constantly baffling question, yet it was absolutely essential to the control of internal affairs that the Government know the comings and goings of the enemies within its gates. The date of February 13, 1918, was eventually set as the last on which citizens of enemy countries living in the United States might set down their finger prints and names and file their affidavits of residence and condition.