The Alsops claimed that:
The rockets were timed to disintegrate in the air before contact, but small parts of the weapons were found on the Swedish ground. And it is established beyond doubt that this achievement of the German-Soviet collaboration was responsible for the Swedish mystery.
This notion of "disintegrating rockets" was central to the Ghost Rocket phenomenon and would become increasingly important in US thinking concerning similar events in the US. The basis for the Alsops' fascinating but highly improbable claim is unknown, but it must have originated with their Washington sources.
See: Dow Chemical and the Scientific Analysis of UFO debris
"Flying saucers," the Alsops argued, were proof of the need for vast expenditures on an air defense system for the US (even if such disc-shaped mystery objects did not exist) because they made crystal clear the fact that the Pentagon was unable to monitor the nation's skies with a thoroughness adequate to prevent surprise attack by the kinds of advanced weapons that were sure to appear in the near future.
These fears did not die out. The steady stream of Ghost Rocket-like reports from military witnesses in the US and overseas led to a growing sense among some circles in the military and engineering sectors that there definitely was something to the stories of missile-like craft.
Beginning in December, 1948, Ghost Rocket-like luminous phenomena began to be seen in New Mexico and near other sensitive locations. The response of certain US security organizations followed much the same pattern that had been established during the events in Scandinavia. Convinced that the phenomena were man-made and probably of Soviet origin, some intelligence organizations and technical personnel launched an ad-hoc recovery effort in an attempt to prove that the US was being overflown by foreign projectiles.
A chronology of the crucial Green Fireball events of late 1948 and early 1949 begins below.
Continued: A Green Fireball Chronology: 1946-February 1949