>But his statements about pot being "no worse" are bad science. And that's my major issue (and an issue with people in his own agencies)


A, the people in his own agencies don't want to lose their jobs fighting pot use

B,

http://www.cnn.com/2014/01/20/health/marijuana-versus-alcohol/


About 88,000 Americans die each year because of excessive alcohol use, according to the CDC. Nearly half of those deaths are from chronic alcohol use -- liver failure, for example -- while the other half are attributable to acute situations, such as alcohol poisoning or a drunken driving accident. There are an average of 1,600 alcohol poisoning deaths, or overdoses, each year.

Weed can kill you too, as this drug dealer showed. [Link to article with headline: Drug trafficker killed by his own 500kg cargo of weed after it crushed him to death when he crashed car following police chase]

In all seriousness, marijuana affects your reflexes, hindering your motor skills. So marijuana-related car fatalities are not unheard of.
And one study found marijuana users have a 4.8-fold increase in risk of a heart attack during the first hour after smoking because of the drug's effect on your heart rate.
That said, scientists believe that a marijuana overdose is highly unlikely. One study found it was safe for animals to consume about 30% of their body weight in cannabis without overdosing; that's the equivalent of a 160-pound person eating 48 pounds of weed at one time.