• London police make terror arrest
• Judge says Arizona sheriff was profiling
• Holder involved in decision on reporter's emails
• Gas explosion kills 17 children in minivan
• Donations for Oklahoma top $20 million
• Oklahoma principals recall day tornado hit
• FCC hopes to avoid 'end of world' for cellphones
• Google's quest to get more women in tech
• Newtown school district to get $1.3 million
• School district, student at odds over tweet