IT WAS FOUR by the time I left Berkeley and made it back to the office. My secretary, Brenda, happened to catch me in the hallway. "You've got two messages from A.D.A. Bernhardt, but don't get comfortable. The boss is asking for you upstairs."

As I knocked on Tracchio's door, a meeting of the Emer-gency Task Force was already under way. I wasn't surprised to see Tom Roach, from the local FBI. They'd been all over things since Cindy got the e-mail that morning. Plus Gabe Carr, the deputy mayor in charge of police affairs, and Steve Fiori, the press liaison.

And someone with his back to me whom I didn't recog-nize: dark, with thick brown hair, solidly built. The guy had advance team for the G-8 meeting stamped all over him. Here we go, antacid lovers.

I nodded to the guys I had worked with, a quick glance toward the suit I didn't know. "You want to bring everyone up to date, Lieutenant?" the Chief said.

"Sure," I said, nodding. My stomach churned. I hadn't exactly prepped for a presentation. I had the feeling I was being set up, Tracchio-style.

"A lot of things are pointing toward Berkeley," I explained. I ran off the key angles we were working. Wendy Raymore, the demonstration today, Lemouz.

"You think this guy's involved?" Tracchio asked. "He's a professor, right?"

"I ran his name and it came back with nothing deeper than a couple of unlawful demonstrations and resisting arrests," I said. "Both dropped. He's harmless. Or he's very, very smart."

"Any trace on the taggants in the C-4?" Tracchio asked. It felt as if he was trying to make points with the Fed in the tan suit. Who the heck was he anyway?

"It's with ATF," I said.

"And these people keep communicating on these public e-mail ports to threaten us," he said.

"What do you want us to do, stake out every public-access computer in the Bay Area?" I asked. "You know how many we're talking, Chief?"

"Two thousand one hundred and seventy-nine," the Fed in the suit suddenly chimed in. He flipped a sheet of paper. "Two thousand one hundred and seventy-nine public-access Internet access portals in the Bay Area, depending on how they're defined. Colleges, libraries, caf俿, airports. That in-cludes two in army recruiting centers in San Jose, but I don't think they'll try there, if that narrows it............