The missed opportunities in White House’s critical infrastructure directive

A White House national security memorandum outlining how the government helps defend critical infrastructure from physical and digital attacks leaves gaps that only Congress can fill, experts warn.

The release last week of a long-awaited revision to an 11-year-old document known as presidential policy directive 21 (PPD-21) was considered a welcome step toward modernization from many in the security community, setting in stone how the White House plans to assist critical sectors like health care, water, and energy in the face of ongoing cyberattacks.