If you live in Houston you might want to take that vacation out of town this week.
I don't live anywhere near Houston, thank God. And this is probably just a regularly scheduled annual exercise as FReeper Agatsu77 mentioned. However, the fact that so many doubt anything the FBI says these days, accurately reflects the overall drop in confidence many Americans have in the FBI. I wish it wasn't so, but there it is.
“If you live in Houston you might want to take that vacation out of town this week.”
Or at least find a old-timey desk and a stack of books so you can get under your desk top and put books on your head (or something such as that—I forget my middle-school training from the 60s).