Long security lines at airports have been causing headaches for air travelers, but the head of the TSA says he’s working on it:

What does that mean? You guessed it:

https://twitter.com/JayCaruso/status/736543312233041925
https://twitter.com/EF517_V2/status/736543305782177793
https://twitter.com/laurakfillault/status/736543050302816256

TSA chief Peter Neffenger told CNN he’s still not sure how many more officers his agency will need to shorten travelers’ wait times.