The effect of these feeble efforts to secure fair treatment was seen on June 27, 1807. The only excuse for the impressment of American seamen was that sailors from the British men-of-war were apt to desert when they reached an American port, and frequently shipped on board American vessels. The chief reason was the severity of naval discipline and the low wages paid by the British government. The American frigate "Chesapeake," about leaving Norfolk for a Mediterranean cruise, had several such deserters on board without the commander's knowledge. When outside the capes the British frigate "Leopard" suddenly bore down on her, hailed her, and her captain announced that he was about to search the ship for these deserters. Commander Barron was taken by surprise; his guns were not ready for action, his crew was not yet trained. He refused to permit the search, was fired upon, and was obliged to surrender. Four men were taken off, of whom three were American citizens, and the "Chesapeake" carried back the news of this humiliation. The spirit of the nation was aflame. Had Jefferson chosen, he might have gone to war upon this issue, and would have had the country behind him. The extreme point which he reached was a proclamation warning British armed vessels out of American waters; he preferred a milder sort of warfare. 104. THE EMBARGO (1807-1808). [Sidenote: Jefferson's recommendations.] The Non-importation Act, which up to this time had had no force, finally went into effect Dec. 14, 1807. Two days later news was received that the king had ordered British naval officers to exercise their assumed right of impressment. Forthwith Jefferson sent a message to Congress, hinting that England was about to prohibit American commerce altogether, and recommending an embargo so as to prevent the loss of our ships and seamen. The Senate hurried a bill through all its stages in a single day; and the House, by nearly two to one, accepted it. No foreign merchant vessel could leave an American port, except in ballast, or with a cargo then on board; no American merchantman could leave for a foreign port on any terms. [Sidenote: The embargo evaded.]