As reported by the AP:
A plan to use U.S. spy satellites for domestic security and law-enforcement missions is moving forward after being delayed for months because of privacy and civil liberties concerns.
[T]he availability of satellite images will be expanded to other agencies to support the homeland security mission. The details of how law enforcement agencies could use the images during investigations would be determined in the future after legal and policy questions have been resolved.
It is possible that in the future an agency might request infrared imaging of what is inside a house, for instance a methamphetamine laboratory, and this could raise constitutional issues. In these instances, law enforcement agencies would still have to go through the normal process of obtaining a warrant and satisfying all the legal requirements. The National Applications Office also would require that all the laws are observed when using new imaging technology.