In addition to what @Craig Williams has suggested after you have your layer defined in the WGS84 coordinate system you should then re-project your layer to a Projected Coordinate System which is better for measuring purposes.

http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2010/03/05/Measuring-distances-and-areas-when-your-map-uses-the-Mercator-projection.aspx

Measuring distance between points in ArcMap - what coordinate system to use?
I skimmed through How Companies Can Beef Up Password Security and I thought that several assertions were completely wrong, in particular:


Cryptographic hash (like md5) with salt are bad.
It isn't uncommon to break/crack unix shadow files.
To make a password hash I should run it over md5 or whatever hundreds or thousands of times.


The article suggests that salted hashes are too easy to break and you'd want to select a password hash because its computationally longer to check passwords so you can not do as many per second.

I think doing 3 is bad for security and 1 is in reality the best option. What do you guys think?
