Open-drain outputs can be useful for analog weighting, summing, and limiting as well as digital logic. An open drain terminal is connected to ground when a high voltage (logic 1) is applied to the gate, yet presents a high impedance when a low voltage (logic 0) is applied to the gate.
The End The Gulf of Tonkin Incident August 2nd- The USS Maddox engages three North Vietnamese Torpedo Boats August 4th- USS Maddox and Turner Joy report further engagement in the Tonkin Gulf Gulf of Tonkin Resolution August 7th Congress passes a joint resolution that allows President Johnson to use authority to support the states of Southern Vietnam. This is not a declaration of war.
The Gulf of Tonkin incident proved to be the next apparent incident. True, the Johnson administration jumped at the chance to use the apparent attack to ask for the Gulf of Tonkin Resolution, and later on tried to cover up the fact there was no second incident, but I do not belive that the Johnson faked the attack.