Although the laptop ban was not extended to more city pairs, enhanced security measures were announced on Wednesday by the Department of Homeland Security:
Fact Sheet: Aviation Enhanced Security Measures for All Commercial Flights to the United States
Release Date: June 28, 2017
The United States and the global aviation community face an adaptive and agile enemy. Terrorist groups continue to target passenger aircraft, and we have seen a “spider web” of threats to commercial aviation as terrorist pursue new attack methods. Based on these concerns, the Department of Homeland Security (DHS) is working to raise the baseline of global aviation security to keep the traveling public safe, in coordination with our international partners.
Change to Global Aviation Security Requirements
In light of evaluated intelligence, Secretary of Homeland Security John Kelly has determined it is necessary to implement enhanced security measures for all commercial flights to the United States. These measures, both seen and unseen, include enhanced screening of passengers and electronic devices as well as heightened security standards for aircraft and airports.
Countries: 105
Airports: 280 (approximate number as it will vary based on seasonal airports)
Total airlines: 180
Average daily flights: 2,100
Passengers: 325,000 average daily passengers
Enhanced Security Measures and Timeline
The enhanced security measures include but are not limited to:
Enhancing overall passenger screening;
Conducting heightened screening of personal electronic devices;
Increasing security protocols around aircraft and in passenger areas; and
Deploying advanced technology, expanding canine screening, and establishing additional preclearance locations.
Over the course of the next several weeks and months, DHS/TSA will work with aviation stakeholders to ensure these enhanced security measures are fully implemented. Those stakeholders who fail to adopt these requirements with certain timeframes run the risk of additional security restrictions being imposed.
International Flights Bound for the United States
These enhanced security measures will help to secure all commercial flights departing from 280 airports that serve as last points of departure to the United States.
https://www.dhs.gov/news/2017/06/28/...-united-states