During the “heatless days” two operatives from the same district entered a saloon. They found it warm, the heat coming from a large radiator in the middle of the room covered by a table. The proprietor claimed he was unable to shut off this heat without shutting off the heat from rooms above where he had lodgers. The operatives went to the cellar and found no attempt had been made to shut off the heat from the saloon. Returning to the saloon, they investigated a back room, which was also heated, and where they found four men playing cards. The proprietor claimed these men were his lodgers and that this was their sitting-room. A search was made and evidence found which proved these men to be conducting a regular clearing-house of information for the enemy’s use. Leads were discovered that spread in many directions and made the case one of the most important handled by the District. A camouflaged saloon radiator was the starting point. Each operative discovered that the badge he wore bred a feeling of respect or fear for the authority of Uncle Sam which was quite marked. Seldom was an attempt made to dispute its meaning or to take exception to the request or direction made under its authority. The most desperate characters showed a meekness and a docility that was surprising. The only explanation reasonable is that the United States has from the start of the war shown the world and its own people that it meant business, and that in playing with the authorized agencies of the Government, criminals were not playing with politicians or officials who might be influenced, but with the newly and sternly roused sense of American loyalty which would brook no traitor or near-traitor under the Star and Stripes.