There may be another way to prosecute suspects but that also raises issues, said Calo.
Calo thinks that these lessons could strengthen the case for a national consumer privacy law.
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"This country is based on freedom of speech, " said Ryan Calo, a law professor with the University of Washington.
"There's very little in American privacy law that would limit the domestic use of drones for surveillance, " Calo said.
CNN: Drone use in U.S. may require new laws, Senate panel told
Calo received a grant from the Rose Foundation to start WhatApp last year.
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Calo is part of an influential group of privacy thinkers (many of whom are law professors) who are trying to guide D.
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Calo says he also wants to encourage developers to build apps not only for functionality and fun, but with privacy in mind.
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Calo bills it as a Consumer Reports mixed with Yelp and Wikipedia.
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Calo said he thinks the aircraft can be extremely beneficial but warned that Americans may oppose their use unless there are some limits.
CNN: Drone use in U.S. may require new laws, Senate panel told
Privacy laws need to be updated to account for drones and other new technologies, according to Ryan Calo, of the University of Washington Law School.
CNN: Drone use in U.S. may require new laws, Senate panel told
The opinions in this commentary are solely those of Ryan Calo.
That evolution in thinking about privacy harm may be traced back to Ryan Calo, a researcher at Stanford, who wrote a paper on the topic.
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Calo dings the social networking site for not allowing the user to customize what information app developers can see on their profile when they download an app.
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Calo says this is a feature he is considering adding.
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