Colo. Man Headed For Third Day Of Questions In Terror Probe : The Two-Way Najibullah Zazi heads for third day of questioning by the FBI in terror plot investigation.
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Colo. Man Headed For Third Day Of Questions In Terror Probe

As the man who's been at the center of stories about a terrorism investigation that has stretched from New York to Colorado heads for a third day of questioning by FBI agents, there are reports out of Denver that authorities have been to Home Depot and pool supply stores in the area to ask about purchase of chemicals that might be used to make explosives.

KUSA-TV reports that investigators have been asking "about the purchase of muriatic acid."

The acid, KUSA adds:

Is legitimately used for masonry work, cleaning concrete and oil spills. Chemists say it can be easily converted into an explosive device.

Meanwhile NPR's Dina Temple-Raston says that "law enforcement officials tell NPR" they are investigating whether Najibullah Zazi had contact with a known al-Qaida member in Pakistan. Zazi, is an Afghan now living in Aurora, Colo., who works as an airport shuttle bus driver. His attorneys say Zazi never met with any al-Qaida members.

Zazi, who is scheduled to meet again with FBI agents this afternoon, has not been charged with any wrong-doing. According to the Denver Post, attorney Arthur Folsom says that Zazi, 24, is exhausted:

"He'd rather we be done," Folsom said this morning. "He understands that we need to get this done."

The questioning has changed as interviews have proceeded, Folsom said. "They are going through things — the best I can describe it — is chronologically. Covering all the bases."

Update at 2:30 p.m. ET: The Post reports that Zazi is now with investigators. The newspaper also says that the man's father, Mohammad, "has been asked to meet with the FBI at 1 p.m. (MT, which is 3 p.m. ET) said Wendy Aiello, Folsom's spokeswoman."