Can't be a coincidence off the back of the recent Uranium conference... Not to mention the offer on BMN...
BMN's sp pushed upwards for over a week before their offer...
Interestingly Namibia's government is seeking to raise there mining tax by 17.5%
http://www.miningweekly.com/article/namibia-to-raise-mining-tax-excludes-diamond-mines-from-hike-2011-07-22
Perhaps Botswana is looking very very attractive...