The Protecting America From Spies Act would tighten visa screening by making it easier for the government to deny entry to foreign nationals suspected of espionage, sabotage, or illegal technology transfer. The bill amends immigration law to allow consular and immigration officers to deny visas if they have reasonable grounds to believe someone engages in these activities or violates laws protecting sensitive U.S. technology and information. The legislation also applies these restrictions to spouses and children of inadmissible individuals if the activity occurred within the past five years. The bill does not authorize new spending or establish a timeline for implementation, as it primarily modifies existing visa review procedures. The measure would affect international travelers, foreign researchers, and others applying for visas to enter the United States.