Laser weapons are afraid of haze In addition, different from the science fiction scene,the U.S. burning laser pointer weapons can not see visible light, but can "kills" invisible. Of course, there is no point in the sight of the speed of light, or invisible to the attacker. Compared with the traditional missile, artillery shells and other weapons, the relatively low cost of laser weapons, as long as the power supply is sufficient, it can provide a steady stream of ammunition". It is estimated that the traditional Navy shells and a missile launch need to spend tens of thousands or even hundreds of thousands of dollars, but if installed in the laser weapon can produce hundreds of kilowatts warships, each launch cost of only $1, and only one person can operate. Of course, the current high powered laser pointer weapons are still not a small problem, such as energy sources. Because the power required for laser weapons is very large, it is necessary to have the full electrical propulsion system to apply on the warship .In addition, it can be in a very small area, in a very short time concentrated in huge energy, that can easily change the direction, there is no radioactive pollution. At the same time, laser weapons, short reaction time, low altitude target can suddenly find the volley. Using laser volley multiple objectives, can quickly transform shooting objects against multiple targets. Second, the 100mw Laser Pointer weapon will be affected by climate, not all weather combat. If the long-range strike, laser weapons will be heavily affected by fog, snow, heavy rain and other weather effects. Because the beam of light will be divergent because of refraction, so it can not attack the effect. Zhou Chenming said, the high powered burning laser pointer affected by atmospheric moisture, dust, not far distance, and the thin air will produce different refraction and other physical phenomena, so the laser weapon has a long range needs great power for the development of laser weapons, this is a bottleneck. Lexington Institute for defense analyst Loren Thompson also believes that the current high estimation of Red Laser Pointer weapon effect is too early, "if it rains, dust or atmospheric turbulence, laser weapons will lose its role". For the shortcomings of laser weapons, the U.S. military's response is "old and new"". In order to avoid the bad weather interference of the laser weapon, the US Army is ready to install the "Pang" laser near the side of the existing dense array near the gun. In this way, in good weather, the laser can extend the range of attack to 10 km. In the case of severe weather, the existing 20 mm Gatlin cannon can still be intercepted within 1.5 km of the target, to avoid the emergence of defense vulnerabilities.