They've received about half the transportation funding allotted so far. But mayors say cities' economic clout warrants a bigger share.
Florida considers bounty hunters to deal with pythons, which threaten people and endangered native species.
The system allows real-time tracking of even small birds up to five miles away.
The share of Americans who see science as the nation's greatest achievement is down sharply, even as the public continues to hold scientists in high regard.
A foreign correspondent writes of her longing to adopt two Iraqi war orphans.