The machinery of most of the German ships was found to be damaged to prevent the Government making immediate use of them as transports, for which the larger ones were admirably fitted. The damage dated from the severance of relations on February 3, 1917, and was a preconcerted movement undertaken by the various captains and officers upon instructions from Berlin to cripple the machinery when war seemed imminent. Captain Polack of the North German Lloyd liner _Kronprinzessin Cecile_, held in Boston, admitted that he had received orders to make his vessel unseaworthy from the German Embassy at Washington three days before the rupture with Germany took place. Congress later authorized the President to take title to the German ships for the United States and to put them into service in the conduct of the war. Payment or any other method of return for their seizure was to wait until the war ended. In a short time more than half of the seized vessels had been repaired and put upon the seas under the American flag with new names. Fifteen were fitted for transports. The Stars and Stripes was duly hoisted on the great German liner _Vaterland_. Simultaneous with the seizure of these vessels came wholesale arrests of Germans suspected of being spies. Federal officers swooped down on them in various parts of the country as soon as war was declared. They could not now safely be at large. Several had already been convicted of violating American neutrality by hatching German plots and were at liberty under bond pending the result of court appeals; others were under indictment for similar offenses and waiting trial; the remainder were suspects who had long been under Federal surveillance. It was a war measure taken without regard to the civil law to circumvent further machinations of German conspirators, who had now become alien enemies. Bearing upon these precautions was a proclamation issued by the President warning citizens and aliens against the commission of treason, which was punishable by death or by a heavy fine and imprisonment. The acts defined as treasonable were: The use of force or violence against the American army and navy establishment; the acquisition, use, or disposal of property with the knowledge that it was to be utilized for the service of the nation's enemies; and the performance of any act and the publication of statements or information that would give aid and comfort to the enemy. The Government had previously assured Germans and German reservists domiciled on American soil that they would be free from official molestation so long as they conducted themselves in accordance with American law. A general internment of German aliens was deemed to be both impracticable and impolitic.