Security was stepped up across India this past week following a series of bombings in cities across the country. Kumar Datta captures the tension perfectly with this shot of a security officer’s hand. His was one of many standouts in a week of very strong contributions from our readers.

We get a lot of sunset pictures submitted to You Witness but this one from contributor Mohd Saifulnazim Azman in Malaysia takes the cake. The combination of colors, the stark contrast and the tiny silhouettes of runners on the beach make this a truly memorable image.

View this week’s You Witness slideshow here .

You Witness contributor U.S. Air Force Sgt. Cohen A. Young captured this light moment between a soldier and a young Iraqi boy amidst a damaged neighborhood in Sadr City, Baghdad in a photo illustrating the complexities of the war in Iraq.

View this week’s You Witness slideshow here.

You Witness contributer Joseph Henry catches up with the man of the moment, newsmaker of the week Barack Obama, on the very night Obama clinched the Democratic nomination. Fantastic work Joseph.

View this week’s You Witness slideshow here.