News outlets have been filled with headlines in the last year of government agencies, from immigration enforcement to the U.S. military, acquiring location data collected about you by smart phone applications. The data marketplace where advertisers go to sell ads for a local store should not be the same place the government goes to evade warrant requirements.
In addition to those prohibitions, the bill also creates new mandates for disclosure and transparency, and it closes loopholes for other ways the government might acquire this type of commercially available data from third-parties.
Tell Congress right now that the Fourth Amendment is not for sale.
Source: EFF; Tell Congress: The Fourth Amendment Is Not For Sale Get involved: https://act.eff.org/