Generate text that refutes this claim: A strategic missile defense shield will be an effective defense against ballistic missile attacks targeted at the United States and its allies  The missile defense shield the United States intends to build is the most effective and complete ballistic missile shield ever devised. When fully armed with a complement of anti-ballistic missiles both within the United States itself, and in allied nations in Europe, the shield will be virtually impregnable to external missile attack. This means the chance of a nuclear attack succeeding against it will be very unlikely, reducing the chance not only of a full-scale nuclear war between the United States and another nuclear power, but also against missiles fired by rogue states or terrorists, the biggest threats in terms of actual use of nuclear weapons (The Economist, 2009). Technologically speaking, anti-ballistic missile missiles have developed by leaps and bounds in recent years. The current system being put into operation by the United States is the Aegis combat system, designed for deployment on US Naval vessels. This new development has served to sidestep the problems associated with ground and space-based missile defense arrays, due to the slow response time of ground missiles, and the still unfeasible orbital deployment. The sea-based defense array, furthermore, lacks the problem of the land-based system in that it does not need to be placed in countries other than the United States in order to be effective (thus avoiding the political problems of the past). Technology and diplomacy have clearly made a national missile defense system highly desirable.
defence science science general house supports development missile defence
Anti-ballistic missile systems are a largely unproven technology, and still have many problems that do not make them a viable option for strategic defense, at least not at present. Furthermore, there is the excessively high cost of designing and building such a system, which has been in development for 25 years. It has cost billions of dollars over the decades, including $53 billion between 2004 and 2009, the largest single line on the Pentagon’s budget for those years. For all this, only an unproven system of questionable efficacy has been produced. It would be better to stop throwing good money after bad trying to develop a technology that may never be useful. Also, even if the technology were made effective, the same technology could be used as a countermeasure by enemy countries against the interception of their missiles, making the system even less effective, if not useless (Sessler, et al., 2000). Furthermore, the system does not protect the vital interests of the United States because it angers countries like Russia, which has actually begun increasing its conventional force distributions on its Western border with the rest of Europe, and to threaten to deploy short-range nuclear missiles on its border. The political destabilization caused by the missile defense program is not worth its ephemeral benefits.