Yup, the Massive Ordnance Penetrator (MOP) needs to be harder, according to anonymous Pentagon sources cited in a Wall Street Journal article.

A series of recent tests found that the Air Force’s 30,000-pound tool for penetrating 32 stories of reinforced concrete might not have enough penetrating power to take out Iran’s most heavily protected nuclear facilities, reports the WSJ. This has prompted the Pentagon to secretly ask lawmakers for $82 million to improve the bomb’s penetrating power. The MOP is getting Viagra.

Remember, the Pentagon just spent about $60 million for 16 MOPs that are designed to be carried by B-2 stealth bombers.

While the Pentagon says the improvements aren’t aimed at targeting any one country’s hardened facilities (uhuh, sure), the article reports that these upgrades will allow the weapon to hit some of Iran’s most heavily guarded nuke research sites: