The video lacks specifics and the lawyer in the video indicates that searches here have only come into play in follow-up investigations (FBI agents storming the house with guns drawn needs explanation for instance (for example, did they have a valid warrant or reasonably believe there was an emergency?). Government officials must have performed a search (or seizure) of one's "person, house, papers or effects" to have implicated the Fourth Amendment. Generally, a "search" must involve violating one's "reasonable expectation of privacy" which is determined based on the specific facts of the circumstances.