Well, that explains it. When I drove past the Meyerson this morning at about 8:30, the protesters (big signs, EXXON DOUBLE-CROSS, things like that) were already there, surrounded by TV camera crews. The first thing we saw, though, was a group of Dallas policemen on horseback, six of them, coming all Tombstone across Pearl Street. While we were waiting at the light, they arranged themselves on the grassy — what? not knoll, exactly — beside the access road, solemnly facing the Meyerson as though Trey Garrison might turn up. My daughter thought they looked very cool, these blue cavalieri. There were 15 or 20 other cops guarding the entrance to the Meyerson parking garage. So why the major police presence?