We don’t need DHS, TSA, CIA, NSA. Replace them with a single agency OSS.
And get out of the private citizen snooping and harassment business.
Cant make blanket statements about this subject. Some of these agencies have legitimate missions. Some have redundant and arguably unconstitutional/misguided missions. The whole system needs to be carefully scrutinized and trimmed back to legitimate constitutional function. NSA, FBI, and CIA's core missions, as examples, are complimentary and not supposed to be overlapping or redundant. To my understanding DHS was borne out of the need to coordinate sharing of data across agencies like these to allow them to be better at what they are supposed to be doing, protecting the people of our nation. Mission creep, like federalizing all of TSA/airport security, is an example of what I do not think is legitimate. There are certainly more cost efficient and effective means to prevent bad actors from getting on planes than the circus that airport security became after 911.