The worst law to come out of congress in a long time, as well as the first federal law that's really affected me. Online poker is my primary source of income, and the money transfer site I currently use (firepay) has already been shut down. The main sites I play at are no longer allowing US wagers, and the main money transfer site (Neteller) that other players use isn't accessible to me, since I'm still technically a resident of Maryland.
Terrible law: Yes
Worst in a long time: Not even the worst law in the last month, that's the detainee law.