WASHINGTON — A six-year, $250 million anti-terrorism effort to secure the nation's ports is delayed for at least two more years because the government lacks machines to read fingerprint ID cards issued to more than 1 million workers.

Truckers, deckhands and others requiring access to secure areas at ports paid $132 apiece for the high-tech ID cards that have their fingerprints embedded in them. But the Homeland Security Department, which is overseeing the program, says it still lacks fingerprint readers that can be used reliably in harsh weather.