There has been a huge uproar in the Portland Area and around the net with the introduction of a bill in the Oregon Legislature that would ban anyone under 6 years old from being carried on a bike or a bike trailer.
Representative Greenlick who introduced the bill seems to have good intentions with the introduction of the bill. He is a professor of Public Health at Oregon Health Sciences University and is reacting to a report on the number of injuries on bicycles.
Here is some articles about it from Bike Portland:
Oregon House bills would prohibit wearing headphones, carrying kids under six while biking - Updated
Rep. Greenlick says safety concerns prompted child biking bill
Greenlick child biking bill reaction roundup
Mia Birk asks Greenlick to withdraw bill, says he "misinterpreted" bike injury study
Rep. Jules Bailey works to amend Greenlick bill - Updated