Steve Daines of Montana (right) talks with fellow Republican Sens. Mitch McConnell and Pat Roberts in a White House meeting in June on the GOP health care strategy, which would include deep cuts to Medicaid. Montana insurers say the plan worries them.
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Companies are trying geofencing, which uses GPS and radio frequency identification to set up a virtual, wireless perimeter so that cellphone users in that area receive messages or advertisements on their phones.