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Show plain no suet EE gsSo j :. ' j i 'L jlj - A M'""1 " y.' " TT"1"" -j 7,-,l',,,;l; ,, . - around the radar site in North Dakota would not violate the 1972 treaty. with advance develpment and initial production of a mobile mo-bile ABM system that could be used to protect at least 100 of the 200 MX. Such an ABM system will make it impossible for the Soviets to be sure of destroying des-troying an MX missile even if they fired two warheads at each of the 4,600 shelters. shel-ters. However, a decision such as this would require the U.S. to renounce, or at least amend, the 1972 ABM treaty. Another Pentagon plan, to deploy an ABM System lar missile transportes from 200 to perhaps 50. As a result, the Soviets would have to count the MX missiles as they are constructed, rather than after af-ter they are deployed, if they want to be certain how many the UJS. really has. This is because the new plan eliminates the portholes port-holes on top of each shelter shel-ter holes that were to be opened on a regular schedule sch-edule to prove to Soviet photo intelligence satellites that there was only one missile in each of the separate 200 groupings. Because Reagan strategists strate-gists believe the Soviets will have enough warheads to defeat de-feat the MX and its 4,600 shelters by the late 1980s, when the full system would be deployed, the new plan proposes pressing ahead In an effort to make the Make missile land basing system acceptable to the Reagan administrations, Pentagon supporters have again modified the controversial contro-versial sheltering plan by eliminating some costly arms control features de-meanded de-meanded by the Carter White House, according to the sources in the Defense Department De-partment and on Capital Hill. Pentagon officials say that changes in the Carter MX plan would lower cost of the system by $3 billion and would also cut by as much as 15 percent the land needed in Utah and Nevada for the multiple shelter plan. The new plan for the $50. billion intercontinental ballistic bal-listic missile is one of many options being presented to a special MX review committee. commit-tee. 'This is the option we believe they will end up accepting' ac-cepting' a general involved in the MX program said. The modified plan is but one of a package of old and new strategic weapons programs pro-grams being reviewed by Reagan defense officials as they draw up their strategy to meet what they have called call-ed the decisive Soviet lead in ICBMs. The Carter MX basing plan has been criticized criti-cized by Weinberger and by President Reagan. Other elements beng pushed by the Pentagon MX group include accelerated building of an antiballistic MX and rapid development of a smaller single warhead war-head ICBM that could be produced and deployed by the thousands if the Soviets keep up the pace of their ICBM program. The Weinberger appointed committee is being briefed brief-ed on various MX basing plans and is to report to the secretary in June. Pentagon Pen-tagon and Capitol Hill sources sour-ces said that though the group is in early stages of review several members have already al-ready spoken favorably of the new, modified MX plan, and the associated mix of strategic stra-tegic missile programs. Under the Carter plan, each MX missile was to travel in a transporter among 23 shelters a deployment designed to hide its location but still assure the Soviets that only one missile was hidden in each group of shetlers. In another gesture toward arms control, con-trol, the shelters were to be horizontal, like garages, with ports on the top that could only be opened to show that only one missile was in each 23 shelter grouping. The modified plan would drop the separate 23 shelter shelt-er per missile and pack valleys in Utah and Nevada with as many combinations of missiles and shelters as they could take. Most valleys could accommodate ac-commodate four MXs and their 92 shelters but, according ac-cording to one official, one large valley is being allocated allocat-ed 10 missiles and 230 shelters. shel-ters. Thus the 200 MX missiles could travel among and be hidden in any of the 4,600 shelters. This would allow the Air Force to cut the number of multimillion-dol- |