As "security robots" get deployed across the US by local governments and companies, there is little to no evidence they can effectively fight crime (Cyrus Farivar/NBC News)

Cyrus Farivar / NBC News:
As “security robots” get deployed across the US by local governments and companies, there is little to no evidence they can effectively fight crime  —  When the Westland Real Estate Group bought Liberty Village, a sprawling 1,000-unit apartment complex on the northeastern edge …