News: Business Union membership falls to 11.3 percent, lowest level since 1930s; teachers unions hit hard January 23, 2013 | Modified: January 23, 2013 at 11:00 am Leave a comment WASHINGTON (AP) — Union membership falls to 11.3 percent, lowest level since 1930s; teachers unions hit hard. Sign Up for the Daily E-dition newsletter! Please enter your email address below to begin receiving the Daily E-dition newsletter. You must enter a valid email address in the field above! Thank you for signing up for the Daily E-dition newsletter! You should receive your first newsletter very soon. We're sorry, there was an error processing your newsletter signup. Please click here to visit our Newsletter Signup Center to register for this newsletter.