FBI raids homes of Weldon child, friend

This is kind of strange...here's the last paragraph:

"Weldon, regarded by some as a foreign policy expert, has clashed at times with the Bush administration. In the last year, he has repeatedly said a secret military unit called "Able Danger" used data-mining to link four Sept. 11 hijackers to al-Qaida more than a year before the attacks. A Pentagon report rejected the idea."