|
New York Times on the Web Forums Science
Technology has always found its greatest consumer in a nation's
war and defense efforts. Since the last attempts at a "Star Wars"
defense system, has technology changed considerably enough to make
the latest Missile Defense initiatives more successful? Can such an
application of science be successful? Is a militarized space
inevitable, necessary or impossible?
Read Debates, a
new Web-only feature culled from Readers' Opinions, published every
Thursday.
(98 previous messages)
wrcooper
- 12:02pm Jun 23, 2000 EST (#99
of 11858)
From Inscight:
Posted 12 June 2000, 5 pm PST
Researchers Target Missile Defense Flaws
Washington, D.C.--U.S. researchers are stepping up efforts to
shoot down a proposed missile defense system. More than three dozen
scientists journeyed to the Capitol today to warn lawmakers that the
$60 billion system, designed to knock incoming warheads out of the
sky, is technically flawed because it can't distinguish real
warheads from decoys. The rally came as Pentagon officials heatedly
denied one scientist's charges that they have rigged tests to hide
the problem. The national missile defense system is supposed to seek
out and destroy intercontinental warheads high above Earth's
atmosphere, using high-speed "kill vehicles" to shatter targets with
brute force. Current plans call for a limited defense, starting with
20 Alaska-based interceptors by 2005 and reaching 100 in 2007, that
could blunt a missile threat from North Korea, Iraq, and other
so-called "rogue states." But President Bill Clinton has said he
will wait until after a fifth interceptor test next month to decide
whether to proceed. Scientists at today's rally, organized by the
Union of Concerned Scientists, urged Clinton to delay the decision,
arguing that the carefully controlled test won't determine if the
system will work against real targets. "The [system] is not capable
of handling countermeasures," such as hiding a warhead amidst a
flotilla of shiny balloons or warhead-shaped dummies, said physicist
Kurt Gottfried of Cornell University in Ithaca, New York. The tests
have been "a scientific hoax," adds physicist and nuclear engineer
Theodore Postol of the Security Studies Program at the Massachusetts
Institute of Technology. After analyzing data from a 1997 test
flight, Postol concluded that Pentagon engineers ignored evidence
that their sensors couldn't recognize a decoy, then rigged future
tests by reducing the number of the dummies. Pentagon officials
admit simplifying some tests to speed development, but
"categorically deny that we're fixing the flights," Jacques Gansler,
undersecretary of defense for acquisition and technology, told
reporters. New sensors, computers, and radars not analyzed by
Postol, other officials say, will ensure that the kill vehicles hit
their targets. But the technical dispute is undermining political
support for the program, which is already facing international
opposition. If the system can't tell "a phony [missile] from a real
one," says the Senate's top Democrat, South Dakota's Tom Daschle, "I
don't know that we're ready to commit resources." --David Malakoff
and Adrian Cho
zimbabwe2b
- 09:52pm Jun 29, 2000 EST (#100
of 11858)
Back during Desert Storm, I saw a lot of Patriot Missiles being
launched, but there was no footage of an actual interception, in
fact, all the explosions were behind cloud cover.
With all the hooting and hollering you would have thought we shot
one up Saddam's ass.
palousereader
- 08:07am Jun 30, 2000 EST (#101
of 11858)
"A Missile Defense With Limits: The ABC's of the Clinton Plan".
Thanks for today's article outlining the defense system. For we
nonexperts, it's hard to visualize how this would work. I guess I
think in the short term it might be better to admit we still don't
have the technology to have the 'kill vehicle' distinguish between a
real warhead and decoys, but keep up the research in this area.
In the meantime, turn the 'kill vehicle' into a containment
vehicle carrying many (as many as there might be decoys) small
heat-seeking or laser firing missles that would attack ALL of the
incoming objects, real or decoy. Kind of a shotgun approach. This
might also cut down on the tracking/assisting ground stations
necessary.
So you'd have a missle launch, a containment vehicle and once
that vehicle is within range, it opens up and 'launches' the many
small missles attacking all of the opposition's real/decoy items.
Due to cost and the inevitable shield race/stealing of secrets,
we should share the cost, research and science with the EU, Russia
and China, India, etc. If we all had this type of system- well, we
can move on to the next round of threat/counter-threat, whatever
form that might take. Until we realize we'd just better learn to get
along.
(11757 following messages)
New York Times on the Web Forums Science
Missile Defense
|