According to 'Feds Urge Americans Be Able To Seal Homes':

Insisting that the suggestion that Americans stockpile water, nonperishable food, and cash among other items was motivated by caution -- not specific information -- the feds also suggested ensuring houses have duct tape and plastic sheeting on hand to cover windows, doors and vents to the outdoors...

What, no shovels?

Also, Fox News reported on its Web site Tuesday morning that New York City police have been told to watch for unorthodox weapons -- specifically citing light bulbs, aerosal cans, soda bottles and mayonnaise jars among others -- that could hold biological or chemical weapons.

They were also told to keep an eye out for men who appear to have freshly shaved beards along with ill-fitting uniforms and unusual identifications, the cable news channel Web site reported.

Here's FEMA's 'Are You Ready' guide, and here's more on building earth shelters. Or, just make friends with Mormons.