Thursday links (6/12/14)

The Marijuana Policy Project is pushing to get legalization on the 2014 ballot in Massachusetts. National lawmakers rebuke the DEA for threatening Massachusetts doctors involved with medical marijuana.

Obama's visit to Worcester cost local taxpayers about $200,000.

Students rally against deportations during Obama's visit to Worcester.

Are school shootings "becoming the norm" in the United States? The data don't seem to support that conclusion.

The news organization MuckRock is suing the CIA over its refusal to comply with Freedom of Information Act requests.