INDEPENDENCE, Mo. -- Police in Independence conducted a driver checkpoint on Thursday, but it wasn't to look for drunken drivers. For about an hour Thursday afternoon, officers stopped vehicles to make sure drivers had valid licenses. But some are questioning the legality of holding such a checkpoint. Independence police have arrested more than 1,300 drivers this year for driving without a valid license, KMBC's Jim Flink reported. On Thursday, police stopped about 300 drivers on a busy street. Independence Officer Tom Gentry said drivers without licenses pose a safety concern. "It's a public safety issue. On public highways, you don't...