[T]he Government is not prohibited from examining any items at the border simply because they may be related to the work of an organization,” the Justice Department wrote, “nor are there any factual allegations showing how Plaintiff’s organization has been targeted by the government, or that the routine search of Plaintiff’s electronic devices disclosure may impede the future activities of the organization.”

Note the use of the word "routine" in association with the seizure, for over a month, of all of Houses's electronics.

Feds Defend Seizure of WikiLeaks Supporter’s Laptop | Threat Level | Wired.com